Abstract
In recent years, Open Innovation (OI) and crowdsourcing have been very popular topics in the innovation management literature, attracting significant interest and attention, and inspiring a rich production of publications. Although these two topics share common themes and address similar managerial challenges, to the best of our knowledge, there is no systematic literature review that digs deep into the intersection of both fields. To fill in this gap a joint review of crowdsourcing and OI topics is both timely and of interest. Therefore, the main objective of this study is to carry out a comprehensive, systematic, and objective review of academic research to help shed light on the relationship between OI and crowdsourcing. For this purpose, we reviewed the literature published on these two topics between 2008 and 2019, applying two bibliometric techniques, co-citation and co-word analysis. We obtained the following results: (i) we provide a qualitative analysis of the emerging and trending themes, (ii) we discuss a characterization of the intersection between OI and crowdsourcing, identifying four dimensions (strategic, managerial, behavioral, and technological), (iii) we present a schematic reconceptualization of the thematic clusters, proposing an integrated view. We conclude by suggesting promising opportunities for future research.
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1 Introduction
Open Innovation (hereinafter referred to as “OI”) and crowdsourcing have been and still are hot issues in the innovation management literature. OI has attracted significant interest, stimulating the publication of hundreds of articles over the course of the last decade (Dahlander and Gann 2010; Huizingh 2011; Bogers and West 2012; Remneland Wikhamn and Wikhamn 2013; Lopez-Vega et al. 2016; Randhawa et al. 2016; Moellers et al. 2018; Nylund et al. 2020) similarly, according to Liang and He (2017), crowdsourcing has gained increasing attention from scholars in a broad range of fields such as computer science, engineering, information system, business, and economics (Vuković 2009; Whitla 2009; Saxton et al. 2013; Geiger and Schader 2014; Zhao and Zhu 2014; Ghezzi et al. 2018; Devece et al. 2019). OI, a new paradigm introduced by Chesbrough in 2003, assumes that an organization can enhance its innovative capabilities through its interactions with other organizations (Chesbrough 2003a, b). OI is about the innovation capability deriving from the external interactions among organizations, which may follow two distinct directions: inbound OI and outbound OI (Gassmann et al. 2010; Huizingh 2011). Inbound OI (outside-in process) refers to the internal use of external knowledge, from partners, customers, universities, research organizations. Outbound OI (inside-out process) refers to external exploitation of internal knowledge, through selling patents, direct licensing, or by other means. Crowdsourcing is a complex phenomenon, and this aspect has emerged since its origins. Howe coined the term “crowdsourcing” in Wired Magazine in 2006, as a compound word of crowd and outsourcing to indicate the practice of turning to a body of people (the crowd) to obtain needed knowledge, carry out specific tasks, involve online communities in solving problems. In 2008, Howe proposed four types of crowdsourcing that focus on the ways that various applications function: crowd wisdom or collective intelligence, crowd creation or user-generated content, crowdvoting, crowdfunding (Brabham 2013). Given its multidisciplinary nature, it is difficult to define it: in the expert literature, we can find a variety of definitions, which look at crowdsourcing from different points of view (Estellés-Arolas and González-Ladrón-de-Guevara 2012; Saxton et al. 2013; Geiger and Schader 2014; Zhao and Zhu 2014). Recently, Ghezzi et al. (2018) in their review affirmed that “research into crowdsourcing originated from – and, in turn, feeds into – the streams of OI and co-creation”. There is, however, a growing stream of research that considers crowdsourcing applied for OI (Merz 2018). Thanks to its adaptability, crowdsourcing could be an effective and powerful practice, and it could have great potential in operationalizing OI strategies. According to Albors et al. (2008), OI and crowdsourcing are samples of the same learning paradigm, as knowledge is distributed and the opening of a firm's R&D processes can be a source of competitive advantage (Palacios et al. 2016). Moreover, as Bogers and West (2012) emphasized, crowdsourcing is consistent with the OI paradigm. Thus—from a strategic point of view—it must be clear that the “crowd is being asked to share its knowledge as users to improve its own experience” (Buettner 2015). Silva and Ramos (2011) emphasize that crowdsourcing innovation stems from the new paradigm of OI, based on the premise of opening up the innovation process benefiting from existing knowledge and ideas beyond the borders of the company, using the principle of opening the innovating process to a crowd. In a similar vein, Stanko et al. (2017) include crowdsourcing in the numerous mechanisms of inbound OI that managers can employ to encourage inbound knowledge flows across their organizational boundaries. That is why, in recent years, crowdsourcing has emerged as a promising OI strategy for firms searching for solutions to technical problems (Pollok et al. 2019a, b). In this perspective, our research aim is to understand how to frame crowdsourcing within the research stream of OI to bring out common critical issues and potentialities. To achieve this objective, this paper, true to the spirit of other reviews on the relationship between two topics (van der Vegt 2018), analyses how the interconnections between crowdsourcing and OI are depicted to map the current breadth and variation in the literature, to identify any major variations from previous findings and to contribute valuable insights into different aspects of both OI and crowdsourcing. Crowdsourcing highlights the growing importance of OI, especially as regards the need for developing certain mechanisms that will allow a smooth decision-making process, which will consist of examination, selection, and adoption of appropriate OI ideas, activities and projects (Alexy et al. 2012). In this context, as stressed out by Bogers et al. (2017), a better comprehension of the relationship between OI and crowdsourcing can lead to better understand the link between openness and firm performance and, in so doing, it contributes to the research in the innovation management field. There are several reviews about OI (West and Bogers 2014; Hossain et al. 2016); a literature review was also conducted from the knowledge management perspective (Natalicchio et al. 2017), and systematic studies on different aspects of OI, for example with a focus on SMEs (Galeano and Gaviria 2016; Hossain and Kauranen 2016) or on negotiation (Barchi and Greco 2018), on a specific industry (Secundo et al. 2019) or the organization and management of collaborative relationships (Perkmann and Walsh 2007) were carried out. Similarly, we can find several reviews, systematic mapping studies or taxonomies focused on crowdsourcing (Hossain and Kauranen 2015; Hosseini et al. 2015; Ghezzi et al. 2018), under different perspectives. Nevertheless, few OI studies use bibliometric analysis (Kovács et al. 2015; Randhawa et al. 2016) as well as, according to Liang and He (2017), few crowdsourcing studies are conducted from the bibliometric perspective. We believe that a joint review of the topics of crowdsourcing and OI is of interest to researchers and practitioners in the field of management. Indeed, there are several common themes: intermediation/brokerage and the role of intermediaries in OI and in crowdsourcing (Howells 2006; Feller et al. 2012; Silva and Ramos 2012); the selection process of the right external actors and involving them in an efficient way on one hand (Gürtler and Lindemann 2013), the solvers’ intrinsic and extrinsic motivation to increase their participation in crowdsourcing sessions on the other (Körpeoglu and Cho 2018); rules and policies that should be adopted to manage Intellectual Property Rights (IPRs) in innovation contests (Mazzola et al. 2018) and in innovation ecosystems (Holgersson et al. 2018); the role of knowledge distance, seeker status and identity disclosure in the collaboration processes between heterogeneous agents (Pollok et al. 2019a); key success and unsuccess factors of crowdsourcing for innovation (Ramos et al. 2009; Lüttgens et al. 2014); the complex issues of value creation and value capture process of OI contests and crowdsourcing platforms (Poetz and Schreier 2012; Afuah and Tucci 2013; Kohler 2015). Although these two topics share common themes and address similar managerial challenges from different points of view, as highlighted above, to the best of our knowledge, there is no systematic literature review have ever been carried out that dig deep into the intersection of both fields.
So, to fill in this gap, the main objective of this study is to carry out a comprehensive, systematic, and objective review of academic research to help shed light on the relationship between OI and crowdsourcing. With this purpose, we reviewed the literature published on these two topics applying bibliometric techniques, a type of review that has not been carried out to date in this context.
The rest of the paper is organized as follows. In the next section, we describe the methodology used in the systematic review process and the one used in the co-citation analysis and co-word analysis. The application of these complementary bibliometric methods enables a more robust, structured, and comprehensive review of OI and crowdsourcing research domains (Randhawa et al. 2016). The results of the process are explained in the third section: the findings thus present a clearer understanding of the intellectual streams and key concepts that underpin both OI and crowdsourcing. Then, the co-word analysis is used as a basis for a qualitative analysis of the main themes that emerged. Finally, we present and discuss the main results, proposing a reconceptualization of the thematic clusters, and the future outlook that can be drawn from our research.
2 Method
Following Keupp et al. (2012) approach, which recalls recent suggestions about a greater methodological rigor of reviews of the management literature (Tranfield et al. 2003; Pittaway et al. 2004), in our study we carried out a systematic literature review that provides co-citation and co-word analysis. Bibliometric studies, available in many fields, constitute a methodological innovation because, unlike traditional literature reviews, they are less subject to researchers' interpretations (Mas-Tur et al. 2020). Using document titles, keywords, abstracts, or complete texts as the unit of analysis, it is possible to perform a co-word analysis to show the conceptual structure and the main concepts covered by the field of interest. We chose to apply this method to the author's keywords. The output of the co-word analysis is a network of themes and their relations that represent the conceptual space of a field; it differs from the co-citation analysis in that it systematically discovers concepts within the field and it enables a content-driven review of the literature (Zupic and Čater 2015).
Before we started the actual systematic review, we scanned and read some of the most salient articles in the field to determine the search terms. Then we used the Scopus database—updated to 23 January 2020—to find all literature on the topic that could be of interest.
Our structured search strategy was as follows: < TITLE-ABS-KEY ("open innovation" OR "collaborat* innovation") AND TITLE-ABS-KEY (crowdsourc* OR "crowd-sourc*") AND (LIMIT-TO (LANGUAGE, "English")) > .
We included the term “collaborat* innovation” because collaborative innovation is considered as a synonym of OI, and we wanted to reduce the probability to miss relevant literature due to a too limited search. We used the asterisks to retrieve results for similar versions and alterations of the terms, like crowdsourcing and crowd-sourcing or crowdsourced. The previous query allowed the retrieval of the 393 articles, all published since 2008. Then we applied clear exclusion criteria to be transparent in the selection process and limit the bias in selecting literature. So, the initial number of publications is assessed on their suitability of reflecting on both OI and crowdsourcing by scanning the title and abstract. In the first instance, the main reasons for elimination are irrelevant content or a different topic, such as crowdfunding or open source software; no relation to management or innovation issues, absence of abstract, no reference list (not eligible for co-citation analysis), erratum. A further 45 articles were excluded mainly based on the second screening of paper abstracts carried out through the parallel analysis of the abstracts by two researchers; in case of doubt, a convergent choice was reached. A schematic flow diagram outlining the whole literature selection process can be seen in Fig. 1.
Downstream of the selection process, we obtained 194 documents. These final publications form the knowledge base included in the co-citation and co-word analysis. Co-citation analysis (McCain 1990) uses co-citation counts to construct measures of similarity between documents, authors, or journals. Co-citation is defined as the frequency with which two units are cited together (Small 1973). A fundamental assumption of co-citation analysis is that the more two items are cited together, the more likely it is that their content is related (Zupic and Čater 2015). This way, this approach illustrates the structure and theoretical core of the investigated area. Co-word analysis (Callon et al. 1983) is a content analysis technique that uses the words in documents to establish relationships and build a conceptual structure of the domain. The idea behind this bibliometric technique is that when the frequency of co-occurrence of certain words in documents is high, the concepts underlying those words are closely related.
For executing the two types of bibliometric analyses on the data retrieved from Scopus as described above, we used the open-source software tool SciMAT version 1.1.04. SciMAT is a recent Science Mapping Analysis software tool developed by a research group at the University of Granada (Cobo et al. 2012).
3 Knowledge base and evolution of crowdsourcing and open innovation
Before proceeding with the actual bibliometric analysis, we examined the influence in the number of citations of the set of the selected papers. Citation is primarily a measure of impact, so the major ability of this kind of analysis is to find the documents, authors, and journals that are the most influential in a particular research stream (Zupic and Čater 2015). The table below (Table 1) shows the most-cited articles among the 194 articles under examination. Among the first articles in the list, there are several papers (Leimeister et al. 2009; Majchrzak and Malhotra 2013; Schlagwein and Bjørn-andersen 2014) published in Information Systems journals; this is not surprising since crowdsourcing has been studied by scholars and practitioners within several information systems disciplines (Ghezzi et al. 2018). Then we find Bogers et al. (2017), a joint work by several OI scholars. Scrolling through the list, the first article in which both themes explicitly appear is Seltzer and Mahmoudi (2013) where crowdsourcing is described as a “key technique for OI, issuing a challenge to a large and diverse group in hopes of arriving at new solutions more robust than those found inside the organization”. Other influential publications following in this list cover a variety of aspects including organizational learning with crowdsourcing (Schlagwein and Bjørn-andersen 2014), user innovation (Bogers and West 2012), the role of knowledge diversity in OI platforms (Frey et al. 2011), crowdsourcing based business models (Marjanovic et al. 2012).
To perform the co-citation analysis first we edited the set of documents, fixed misprints, misspelled authors' names, and other errors in titles, references, etc., to improve the quality of data. We also did the de-duplicating pre-processing. At the end of these operations, we moved from 9752 to 6282 references which are the ones we analyzed with SciMAT. Co-citation is applied to the cited articles; this way, it allows to identify the knowledge base, also referred to as the intellectual structure, of a topic (Zupic and Čater 2015).
Then we performed the time-slicing. At this stage, we grouped similar references and authors and we divided the time interval from 2008 to 2019 into three four-year subperiods: 2008–2011, 2012–2015, 2016–2019. Finally, we carried out the co-citation analysis with the following configuration: all the three subperiods, reference as the unit of analysis, a minimum frequency for data reduction of 2 and the network is built using co-occurrence relation (minimum co-occurrence set to 2). Other parameters were: equivalence index as the similarity measure to normalize the network, simple centers algorithm as the clustering algorithm with a maximum net size of thirty and a minimum of five, core mapper for the document mapper, h-index as the quality measures, and, lastly, inclusion index for the evolution map and equivalence index for the overlapping map. It is useful to remind that the co-citation analysis is performed on the references of the selected documents, so there may be overlaps or not. The co-citation analysis is useful to uncover the key references in a research field (Cobo et al. 2012) and to trace its intellectual roots. By applying the simple centers algorithm, the clustering process locates reference networks that are strongly linked to each other. To visualize the result, we used SciMAT to create an evolution map, which detects the evolution areas across the defined subperiods. The evolution map is displayed in Fig. 2. The spheres represent the clusters, and their volume is proportional to the number of documents. The characteristics of the line define the quality of their relations, representing the weight of the “evolution nexus” between the items of two consecutive periods. More precisely, the solid line means that the linked clusters share the main item (usually the most significant one), whereas the dotted line means that the themes share elements that are not the main item, describing elements that are relatively far from the main ones (Alcaide–Muñoz et al. 2017). The thickness of the edges is proportional to the inclusion index, reflecting the proportion of the number of published documents in each cluster (Cobo et al. 2012; López-Robles et al. 2018).
The map shows the presence of some milestones, like "The era of Open Innovation" (2003), Chesbrough's seminal article, von Hippel (2005) and Surowiecki's book (Surowiecki 2005), that have many links to the papers of the following subperiod. Moreover, we can observe that this central role is inherited by Brabham (2008), Brabham (2010), von Hippel (2005) and Boudreau et al. (2011); we also find some historical roots in similar domains like open-source, with the paper by Hertel et al. (2003) and West and O’mahony (2008), and co-creation (Sawhney et al. 2005). Another relevant paper is Feller et al. (2012), which investigate managerial and organizational aspects, such as how to orchestrate a sustainable model of crowdsourcing, that anticipated promising lines of research in this area. In the last subperiod, one of the most important publications is the article written by Estellés-Arolas and González-Ladrón-de-Guevara (2012) that provides a wide definition that covers the majority of existing crowdsourcing processes, but it does not clarify the relationship with other related concepts such as Outsourcing, Open Source, OI.
It is interesting to note the evolution during the three subperiods of the relevance of the papers also using the strategic diagram. This visualization technique shows the detected clusters of each period in 2-dimensional space, according to their centrality and density rank values (since we used median for classifying clusters for better legibility) along the abscissa (centrality) and the ordinate (density) (Cobo et al. 2011, 2012). As defined by Callon et al. (1991), centrality measures for a given cluster the intensity of its links with other clusters, in other words, it measures the degree of interaction of a network with other networks, whereas density measures the internal strength of the network, characterizing the strength of the links that tie the words making up the cluster together. Following Callon et al. (1991), given both measures it is possible to identify four groups: in the first quadrant (upper right) we find the clusters known as motor clusters since they present strong centrality and high density (Cobo et al. 2018); in the second (lower right corner) basic and transversal clusters; in the quadrant three (upper left corner) the highly developed but isolated and peripheral clusters, that are specialized but marginal; finally, the fourth quadrant (lower left) shows the emerging or declining clusters, characterized by low density and low centrality. Surprisingly, we find that in the first period 2008–2011 (Fig. 3) a central role is played by a non-scientific publication, the book “The Wisdom of Crowds” by Surowiecki (2005), that examines why the many are smarter than the few and the impact of collective wisdom on business, economies, societies, and nations, meanwhile, less surprisingly, Chesbrough’s seminal work “The Era of Open Innovation” (Chesbrough, 2003a, b) is a basic and transversal element.
Similarly, in the successive quadrennium 2012–2015, we can observe an increased number of motor clusters, due to a growing number of co-citations that have accumulated over time (Fig. 4). These include the following papers: West and O’mahony (2008), Brabham (2010), Hertel et al. (2003), and Sawhney et al. (2005).
Finally, in the last diagram (Fig. 5), we can observe evolution in terms of the number of the more significant publications in the field. Among the motor clusters, some papers bring attention to communities and their governance (O’Mahony and Ferraro 2007), others deal with the managerial challenges faced by companies working with both OI and crowdsourcing intermediaries (Sieg et al. 2010; Piezunka and Dahlander 2015). We find also the work by Estellés-Arolas and González-Ladrón-de-Guevara (2012), in which an exhaustive and consistent definition for crowdsourcing is presented. For our purposes, the position of this paper is very interesting, because the authors affirm that “another area where consensus does not exist is in the relationship between crowdsourcing and other associated concepts such as OI”. Among the emerging clusters, we want to underline the presence of a recent “taxonomy theory” of crowdsourcing, in which the crowdsourcing model has been described from the perspective of a virtual production platform (Saxton et al. 2013), together with previous papers that, although they do not directly concern crowdsourcing or OI, provide a theoretical basis for them, as they face common challenges and issues. We find for instance the performance assessment of innovative and novel methods compared to traditional idea generation techniques (Lilien et al. 2002), issues from the organizational point of view emerged in the context of Open Source (Von Hippel and Von Krogh 2003), the exploration of the role of business models to capture value from innovation (Chesbrough and Rosenbloom, 2002). Consistently with their theoretical importance, we find in the second quadrant among the basic and transversal themes, Cohen and Levinthal (1990), Surowiecki (2005), and Howe (2008). Finally, in the fourth quadrant, Galateanu and Avasilcai (2017) and Poole and van de Ven (1989) is very isolated, while Terwiesch and Xu (2008) has a high centrality and a greater number of links with other clusters, as can be seen on the evolution map (Fig. 2). In summary, our results show that many authors from different disciplines have contributed to the literature, that this is a field in which interest has grown over time, and that there is no single discipline covering all aspects. In the next paragraph, starting from the results of the co-word analysis, we will deal with a more detailed and in-depth discussion and interpretation of the common themes.
4 Content analysis: emerging themes, trending topics, and shared areas of application
Similar to what was done in the previous co-citation analysis, as a first step, we did a deduplication process, grouping similar words (by plurals) or those words that represent the same concept, looking for synonyms or duplicates in words with the highest number of documents and repetitions. Finally, as usual in these cases (Cobo et al. 2014), some meaningless keywords in this specific context, for example, words with a broad and general meaning as RESEARCH-AGENDA, PRIORITY-JOURNAL, were considered in the same manner as to stop words.
To perform the co-word analysis, the following configuration in SciMAT was established: word as the unit of analysis, co-occurrence analysis as the tool to build the networks, association strength as the similarity measure to normalize the networks, and the simple centers algorithm as the clustering algorithm to detect the clusters or themes (Cobo et al. 2014; Lubicz 2017; López-Robles et al. 2018; Santana and Lopez-Cabrales 2019). We chose to use the association strength as a normalization measure because, according to van Eck and Waltman (2009), “co-occurrence data can best be normalized using a probabilistic measure like association strength and this provides strong support for the use of the association strength in scientometric research”. Other configurations were core mapper for the document mapper, inclusion index for the evolution map, and equivalence index for the overlapping map. By running the co-word analysis through SciMAT, 10 different clusters were distinguished, as reported in the following table (Table 2).
The detected themes and the relative clusters' information are visualized utilizing the strategic diagram (Fig. 6). As already pointed out, this diagram allows to visualized a research field as a set of research themes (Cobo et al. 2018), mapped along two axes (centrality on the abscissa and density on the ordinate); as centrality grows, the importance of external ties concerning the other themes grows, and the greater the density, the better the internal ties among the themes are developed.
In the strategic diagram, Human and Platforms are characterized by the maximum value of density and centrality, respectively. Among the motor-themes we find Web and Data; in the upper and left quadrant, the specialized themes are Product Development and Information Management, among the basic and transversal themes we find Crowdsourcing and Innovation, while Open Innovation and Collaboration are located in the lower-left quadrant.
In addition to the strategic diagram, we also show and analyze all ten thematic networks identified. According to Cobo et al. (2011), a thematic network is a visualization instrument available on SciMAT that allows the representation of the network graph created by the keywords (nodes) in a research theme and their internal links (edges); the most central keyword in the related theme is used to designate each thematic network (Santana and Lopez-Cabrales 2019). In this kind of graph, the thickness of the edge between two nodes is proportional to the selected similarity measure.
It is also worth noting that the presence among the resulting clusters of two clusters corresponding with the two terms under investigation is not surprising as in the initial query for data fetching the key terms Open Innovation and crowdsourcing were expressly mentioned. We recall that the co-word analysis was conducted on the keywords associated with the papers collected and that the clusters listed in Table 2 are not simply the words with the most occurrence, but thematic networks where the most central word is used as a label.
The next subsections entail a description of each cluster, starting from the one with the highest value of the performance indicator (number of core documents) proceeding in descending order.
4.1 Cluster 1: open innovation
This important cluster coincides with one of the key terms of this literature review. Within this thematic network, in addition to the Open innovation, we find eleven keywords, as in Fig. 7.
By examining the thematic network, we can identify some keywords corresponding to research lines of great interest to the scholars in this field. Among these, we note a certain interest in theoretical contributions such as the link between OI and Absorptive capacity, defined as a “firm's ability to recognize the value of new information, assimilate it, and apply it to commercial ends" by Cohen and Levinthal (1990). As argued by Vanhaverbeke et al. (2008), OI is not possible without absorptive capacity as an internal capability of innovating companies. Both OI and absorptive capacity focus on the sourcing of externally developed knowledge. We then find different contributions on possible approaches to leveraging External Knowledge and engaging with external parties, such as Living Lab, third-party OI intermediaries, usually Web-based platforms or Crowdsourcing innovation intermediaries, Communities. One of the most investigated OI platforms is InnoCentive, whose business model is centered on opening up the search process and broadcasting science problem information to outsider solvers (Boudreau and Lakhani 2009). We can notice that in the network there is a direct link between InnoCentive and Problem Solving. We also note that related topics such as User Innovation and Lead Users appear.
4.2 Cluster 2: crowdsourcing
Another important cluster that coincides with the other key term of this literature review is represented by the keyword Crowdsourcing, as illustrated in Fig. 8.
Analyzing this thematic network, it is possible to recognize research lines related to the three different actors involved in the process: the problem’s owner (a firm or an organization), the intermediary, and the crowd. Strategic planning, Profitability, and Design problems concerns to problem’s owners. They relate to the need to make Strategic planning alleviate risks and maximize Profitability, outsourcing tasks and problems to a crowd of potential solvers; also, one of the biggest problem for seekers—especially SMEs—is how to find the useful and valuable and less costing innovative design about their product (Lee 2016). Information technology, Digitization, and Idea Management are more pertinent to intermediaries, as they affect the technology implementation and management of the process to mediate access to the crowd of innovation and solution providers. From the crowd’s point of view, Incentive is one of the dimensions that characterized the crowdsourcing process (Ali-Hassan and Allam 2016). Together with motivation and engagement, Incentive is one of the critical success factors of this mechanism. It also emerges the relevance that the concept of Value has had and still has in the expert literature: the attention is focused on the whole chain starting from the Value creation to its Capture and final appropriation.
4.3 Cluster 3: platforms
This cluster (Fig. 9), placed between the second and the third quadrant, is the one where the central keyword is Platforms.
This theme covers research lines such as Business models, Innovation contests, Online Systems, Ecosystems, Problems, Open Government, Collective Intelligence, among others.
In the extant literature, we found that the Platforms have been subject to many studies regarding the Business Model (Afuah 2014; Kohler and Nickel 2017; Kohler 2018), the features of the Online systems, the mechanisms underlying the implementation of Innovation contests. The platforms represent an effective and enabling tool to implement OI strategies, to realize product and service innovation (Xu et al. 2012), and to exploit Collective Intelligence to gain and develop new ideas for products and services and to generate new knowledge (Buecheler et al. 2010).
From the scholars’ perspective, they raise interesting questions about the Problems they host, the Information use, and IPR management (Fantoni et al. 2016; Mazzola et al. 2018). According to Bogers et al. (2017), the Platforms are an actual form of Ecosystems and by this nature, are intrinsically linked to other concepts like Entrepreneurship. Schenk et al. (2019) discussed the conditions—such as the presence of network externalities, transaction costs, and skill requirements—under which the use of a third-party platform may be considered more appropriate than a proprietary platform, while Jayakumar (2016), relying on a real case study—the crowdsourcing intermediary Talenthouse India—reviewed the differences between Closed and Open Innovation Models highlighting the added value of this kind of marketplaces for the exchange of knowledge between communities and their client firms.
The platforms can also facilitate web-based interaction between governments and citizens enabling their participation process in public planning (Brabham 2009) and leading to forms of Open government, like, for instance, the co-production of public services (Moon 2018) or the involvement of citizens in crowdsourced and peer-produced solutions to public management problems (Mergel 2015).
4.4 Cluster 4: innovation
Analyzing this cluster (Fig. 10), interest in the type of actors involved in the innovation process emerges (Societies and institutions, Citizen/Public participation), along with interest in appropriate, mature, and far-sighted Research Policies to allow wider participation in research and innovation activities that involve citizens. According to Seltzer and Mahmoudi (2013), Citizen participation, like OI—despite objectives and requirements not always perfectly aligned—seeks involvement on the part of users, customers, and ‘‘thinkers’’ as a means for augmenting the perspectives found inside the firm or organization.
In this context, the appearance of the concept of Changing business environment deserves special attention. In the last decade, the innovative processes of companies have undergone profound developments due to several reasons. Therefore, to respond to the new challenges proposed by the market and to foster Technological development, they have begun to develop dynamics of OI (Chesbrough, 2003a, b) affiliated by a growing propensity to carry out collaborations for innovation with external sources of knowledge and expertise, and the implementation of specific Innovation initiatives. Also, Industrial management, which is about optimally producing products and services mostly deploying people as an asset for the entire organization, can benefit from the involvement of external communities via online platforms. The presence of the keyword Virtual Reality is motivated by the fact that is a trending topic and a buzzword for what concerns the last technological development just mentioned. Another important element of this cluster is the theme of Appropriability. Appropriability together with knowledge mobility and stability is one of the necessary processes to ‘orchestrate’ crowdsourcing to ensure success and satisfaction for both innovation providers and innovation seekers (Feller et al. 2012).
4.5 Cluster 5: Product—development
This network (Fig. 11) presents a great number of internal links, as confirmed by its positioning at a high-density level in the strategic diagram.
Examining the cluster, a trend already studied (Poetz and Schreier 2012; Schemmann et al. 2016) is confirmed: in the last years, since crowdsourcing for New Product Development has become very popular among firms in different industries, such as Manufacturing and Creative industries. As we have already noticed, the adoption of the OI paradigm can help the reduction of Research and Development costs, the sharing of the risks of innovation, and, in some cases, the increase of the speed at which new Innovative products and services are brought to the market. Moreover, crowdsourcing is one of the tenants of Social product development, a new approach to design whose purpose is to “improve traditional distributed and collaborative design processes" by enhancing "communication and collaboration (…) through social computing techniques” (Schaefer and Forbes 2019). Many sectors can benefit from approaches where the drivers of Decision-Making are Customer Engagement and Satisfaction. Several authors (Brabham 2008; Kohler and Nickel 2017; Avasilcai and Bujor 2018) have proposed the Threadless platform as a case study in Creative Industries where the OI process is successfully applied to the design stage of product development (Product design). The twelfth element of the cluster is Crowdfunding. For our purposes, we knowingly decided to exclude the term Crowdfunding from the initial query because, despite various affinities, it represents a distinct search domain. It is not surprising, however, to find this word in this thematic cluster as crowdfunding platforms often stimulate a collaborative process of a group of people who use their money together to support the development of new products from below, thus causing Economic and social dynamics and effects. We can, therefore, infer that various steps of product development, from concept generation to design, even to financial support in the realization, can benefit from a crowd-based approach.
4.6 Cluster 6: information management
The fulcrum of this thematic network (Fig. 12) is Information management, which concerns the process of collecting, storing, managing, and maintaining information.
In addition, we find themes such as Knowledge Management, Knowledge and Technology Transfer, Innovative solutions, Sustainable Development, among others.
Usually, Information management is achieved through a purpose-built technological architecture that is the link between the internal processes and the External environment (de Mattos et al. 2018). This has a significant impact also on Knowledge Management inside and outside the Organizational boundaries. In fact, according to Dimitrova and Scarso (2017), crowdsourcing, on one side, is moving the attention of Knowledge Management toward the organizations' external environment as a significant knowledge source; on the other, it is shifting the focus of knowledge management towards knowledge creation/acquisition activities, instead of towards the knowledge transfer process. Several authors (Feller et al. 2012; Silva and Ramos 2012; De Silva et al. 2018) stressed the role played here by Innovation intermediaries. According to these authors, Innovation Intermediaries facilitate the whole Innovation process, enabling innovation exchanges between organizations and crowds, covering knowledge search, problem-solving, and connecting and coordinating Knowledge and Technology Transfer between actors. They, therefore, act as knowledge repositories, making knowledge-based contributions when providing Innovative solutions to their clients.
4.7 Cluster 7: web
This thematic network (Fig. 13) includes different topics, such as Social networking, Co-innovation, Knowledge sharing, Idea competition, Online Communities, to name a few. As stressed by several authors, the outbreak of Web 2.0 technologies, including Social networking, has led to their use in many domains of business for Knowledge sharing, Co-innovation as well as customer engagement. These technologies have also allowed the overcoming of geographical barriers to the Broadcast search to provide Solutions to specific problems, becoming, thanks to the potential of the Web, fundamental tools to realize initiatives of opening and sharing. Some publications, especially in the Information Systems field, have focused on the classification of crowdsourcing initiatives, campaigns, and Idea competitions to characterized peculiarities and clarify how crowdsourcing differs from Outsourcing and Open Source (Marjanovic et al. 2012), meanwhile, other studies, usually starting from real Case studies, concentrated on the Taxonomies of the crowdsourcing process, analyzing the different parts of this process and their associated metrics. Recently, Piazza et al. (2019) stressed the importance of an appropriate governance structure of the working relationship between organizations and the Online communities of solution providers to increase the value of their online competitions (Fig. 13).
4.8 Cluster 8: data
Analyzing this cluster centered on Data (Fig. 14), we find that crowdsourcing is emerging as a novel framework to find robust methodologies (Saez-Rodriguez et al. 2016) in those scientific disciplines where the analysis and Processing of complex and massive Data is a fundamental issue. In the crowdsourcing approach, interpreted as an outside-in OI mechanism, it is crucial to have a clear Planning and Strategy to improve the Performance of innovation in its many forms, such as Technological innovation, products/service innovation, process/production innovation, operational/management/organizational innovation, business model innovation. About this, Bagherzadeh et al. (2019) examined the influence of outside-in OI on innovation performance considering the mediating roles of knowledge sharing and innovation strategy finding that “knowledge sharing and innovation strategy fully mediate the relationship between outside-in OI and innovation performance”. It is interesting to notice here that, as Battistella and Nonino (2013) stated, more than on Monetary rewards, the OI Platforms depend on different motivations to attract different innovation roles (Fig. 15).
We also observe that some research streams (e.g. Buecheler et al. 2010) deal with the applicability of agent design principles from Artificial Intelligence research to crowdsourcing.
4.9 Cluster 9: human
In terms of Organization and social interactions, compared to other computer-supported cooperative work, such as social computing, social machines, in the crowdsourcing process, the emphasis is on Human participants (Niu et al. 2018). Kazai et al. (2013) addressed the “human factor” issue, exploring the human characteristics of the crowd that shape the experience of contributors with the crowdsourced task. Moreover, as observed by Buettner (2015), since all markets including human factors run under uncertainty, crowdsourcing needs to implement well-calibrated coordination mechanisms to manage the human resources involved. Adopting OI strategies requires Organizational innovation, that needs to be linked to a new and more entrepreneurial culture, open and Cooperative behavior, and a collaborative mindset of the people (Fig. 15).
Over the last years, thanks to the advent of the Internet and tools such as Social media and Web-based platforms, natural and applied sciences, like biology, medicine, pharmaceutics, have also become more decentralized, bottom-up, and scalable than ever before. New models for OI, such as open sourcing, crowdsourcing, public–private partnerships, innovations centers, Bilateral Academic Collaborations, and the virtualization of R&D have carved out a significant space for organizations in Biomedical research, Translational research, and Drug industry (Carter et al. 2017; Schuhmacher et al. 2018). Generalizing what was stated by Lessl and Asadullah (2014) in the case of drug discovery, crowdsourcing and OI approaches foster Cooperation and harness the complementary expertise and knowledge of academic and industrial partners. Saez-Rodriguez et al. (2016) highlighted that “collaborative scientific Competitions, known as challenges, encourage OI, create collaborative communities, to solve diverse and important biomedical problems”.
4.10 Cluster 10: collaboration
Even if this is the smallest cluster consisting of four elements (Fig. 16), with Creativity, Small and Medium Enterprise, and Intellectual Property in addition to the central node Collaboration, it offers the chance to discuss interesting aspects, recently addressed in the literature.
In collaborative and open environments, including crowdsourcing and open and collaborative innovation, IPR management and protection constitute key issues. Fantoni et al. (2016) illustrated a novel architecture for collaborative crowdsourcing where thanks to an IT platform and an IPR tracking system, the involvement of firms is facilitated and users' participation is promoted, exploiting simultaneously collaboration and meritocracy. As for Small and Medium enterprises, OI entails opportunities and challenges for SMEs (Rahman 2016) and through various innovation practices, can lead to success cases (Cardoso and Ramos 2013), enabling knowledge creation and collaboration amongst different players in a network. The real benefit of both OI and crowdsourcing approaches can only be achieved when the power and creativity of crowds can be fully harnessed by converting innovative ideas into practice with actionable plans and tools (Carter et al. 2017).
5 Discussions
In the previous section, we illustrated the output of the co-word analysis, describing the thematic networks and their conceptual meaning. Looking at the clusters obtained and considering them two by two, we recognized that they are the expression of different but complementary aspects: behavioral aspect (Human and Collaboration), technological aspect (Web and Platforms), managerial aspect (Information Management and Data), and strategic aspect (Innovation and Product Development). In our opinion, these four specific dimensions, some of them already investigated in the literature (e.g. Chiu et al. 2014), represent the perspectives to be adopted for a better understanding of crowdsourcing in the intellectual structure of OI. Recalling that our research aims to shed light on the relationship between OI and crowdsourcing, at the end of this section, we propose an integrated view to interpret and synthesize the results.
5.1 Strategic dimension
The strategic dimension represents the strategic objectives to pursue. We recognized in the strategic dimension the desired outcome, the valuable results that an organization aims at when it decides to implement crowdsourcing initiatives in the context of an OI approach. In our analysis, the topics included in the thematic networks Innovation and Product Development represent this dimension, since they are both strategical objectives to achieve. Innovation is recognized as a source of sustainable competitive advantage and to that end, the use of the crowd as an innovation partner represents a big opportunity (Boudreau and Lakhani 2013). Through the crowdsourcing model, the company can obtain support for problem-solving, idea generation, design, and development, testing, and commercialization. As Di Benedetto (2014) observed, OI implies a strategic commitment by the company to integrate its internal knowledge with the external one to improve its innovation performance. For this reason, there is a need for alignment between the implementation of crowdsourcing initiatives for innovation and product development, and the strategic vision at the corporate level. Moreover, it is important to align the interest of the different stakeholders involved. The need for this unity of purposes is also emphasized by Kohler (2015), who highlights the importance of involving the crowd in the platform’s strategic issues.
5.2 Managerial dimension
The managerial dimension concerns the organizational and process level, and it involves all the managerial issues that an organization has to deal with, on both levels. This dimension regards all the aspects related to knowledge and information management, design, development, and implementation of an appropriate business model, management of ambidexterity, and tensions between the different actors. It also covers the managerial capabilities and competencies required, that are essential to proceed along the established strategic direction. The themes inside the cluster Information Management and Data represent the managerial dimension. Examples of this are how to manage information and knowledge, how to collect and process data, how to design tasks, how to manage a crowd, and how to govern the entire process. From an organizational point of view, crowdsourcing also provides an innovative way to get work done and entails a more flexible and dynamic operations flow (Wilson et al. 2018). For it to work, every actor involved—organizations’ members, participants, intermediaries—must be prepared and engaged. This organizational change means that also employees should be properly managed, prepared, and educated for the introduction of this new approach (Lüttgens et al. 2014). Starting with the negative example of Quirky, Kohler (2015) proposes a series of useful lessons for managers to build an effective and sustainable business model and guide their actions in crowd management and platform design, including maintaining effective value creation, sharing value captured, building crowd culture, aligning the aims of the company and the crowd.
5.3 Behavioral dimension
This dimension refers to the behaviors of the stakeholders involved (individuals, seekers, firms, intermediaries) and how they interact. The interest here is in what the motivational drivers are, what attitudes the different actors maintain, what kind of interaction they have. In our opinion, the behavioral aspect is represented by the themes related to the Human and Collaboration clusters, as they concern the individuals, their motivations and attitudes, how they act and interact. As discussed in the literature, a distinctive feature of crowdsourcing is the emphasis on the human component. The human “essence” of the crowd has a big impact on the dynamics of crowdsourcing: for example, concerning the tension between two conflicting drivers, collaboration and competition, as noted by various experts in the field, or the motivations of contributors that may influence the performance of the required tasks. Many studies (Brabham 2010; Boudreau et al. 2011; Frey et al. 2011; Battistella and Nonino 2013; Acar 2019) have provided a better understanding of the intrinsic and extrinsic motivations, incentives, and reward modes best suited to attract users to participate and contribute to the innovation process. At this level, another key element is trust. The development of mutual trust between seekers, solvers, and the intermediary is essential in the OI perspective to ensure success.
5.4 Technological dimension
The technological dimension is related to the information systems, the digital technologies used for supporting the process, and the emerging technologies in the field. The thematic networks Platforms and Web represent the technological aspect. Technology plays a key role by acting as an enabler since it is considered essential in overcoming communication boundaries and favoring knowledge flows (Santoro et al. 2018) and it can be used as a facilitator (Geiger and Schader 2014). The emergence of the Web has acted as a catalyst for the affirmation and success of crowdsourcing since it has put companies and organizations in a position to harness the power of the crowd with little effort (Ghezzi et al. 2018) and almost no limits, thanks to its ubiquity, diffusion, and aggregation capacity (de Mattos et al. 2018). In particular, the platforms have become the essential tools that can be used to exploit collective intelligence to gain and develop new ideas for products and services and to generate new knowledge. Therefore, Platforms and the Web are enabling technologies that allow the successful implementation of the crowdsourcing process in the OI paradigm. As discussed in the literature (e.g., de Mattos et al. 2018), the three concepts of OI, crowdsourcing, and technology are interconnected to create a fertile and innovation-friendly virtual environment. In this sense, the platforms represent an effective and enabling tool to implement OI strategies, to realize product and service innovation, and to manage several issues regarding information use, IPR management, transaction costs, and competence requirements.
5.5 An integrated view
The escalation of the economic crisis, the intensification of global competition, the reduction of the life cycle of new products, and the difficulty of sustaining the increasing expenses in research and development (R&D) are just some of the causes of the change that occurred in the innovative processes of companies and their R&D departments. Therefore, to respond to the new challenges proposed by the market and to foster technological development and the implementation of radical but also incremental innovation, organizations, and firms have begun to develop dynamics of OI affiliated by a growing propensity to carry out collaborations for innovation with external partners, valuable sources of knowledge and expertise, and the implementation of specific innovative initiatives. To achieve this objective, it is crucial to have a clear baseline strategy and implement appropriate managerial actions. Thanks to the previous analysis, we have identified four dimensions, as illustrates in Fig. 17. In the following, we propose an interpretation of how they can form a coherent framework that characterizes the intersection between the two topics of OI and crowdsourcing.
In the context of OI, the crowdsourcing approach allows to promote cooperation and harness the complementary expertise and knowledge of seekers and solvers (Frey et al. 2011). The adoption of OI strategies entails a reorganization of how processes are carried out, that need to be linked to a new and more entrepreneurial culture, an open and cooperative behavior, and a collaborative mindset of the people involved. Moreover, the implementation of practices that allow seekers to draw on the solvers’ intrinsic and extrinsic motivation to increase their participation is essential (Acar 2019). Similarly, the adoption of crowdsourcing requires implementing well-calibrated coordination mechanisms to manage the human resources involved (Buettner 2015; Moellers et al. 2018). In fact, in terms of organization and social interactions, compared to other computer-supported cooperative works, in the crowdsourcing approach, the emphasis is on human participants. Therefore, the managerial and the behavioral dimensions must go hand in hand. Moreover, as remarked by Majchrzak and Malhotra (2013) the management of the two conflicting drives, competition, and collaboration, passes through the creation of an appropriate architecture that encourages and stimulates both. This has repercussions is on the managerial aspect, is on the technological aspect, that, in this context, beyond being an enabler it is also a “shaper” able to optimize OI in general and the crowdsourcing process in particular (Majchrzak and Malhotra 2013). Therefore, as Devece et al. (2019) stated, technology plays a prominent role, but technological capabilities should be integrated by organizational and managerial competencies. For that more, a clear strategy and vision should inspire and mold the technological initiatives, and in turn, managerial skills represent a key element in strategy implementation (Devece et al. 2019). From a business strategy perspective, one of the challenges is how to enable interactions and orchestrate firm’s and crowd’s activities (Kohler 2015). In this regard, innovation intermediaries can facilitate the whole innovation process, enabling innovation exchanges between organizations and crowds, covering knowledge search, problem-solving, and connecting and coordinating knowledge and technology transfer between actors (Feller et al. 2012; Colombo et al. 2013; De Silva et al. 2018). Finally, the fourth component of the diagram in Fig. 17 represents the two strategic objectives, product development and innovation. Crowdsourcing for new product development has become very popular among firms in different industries; it is not only a source for idea generation, since it could be fruitfully used in each subsequent stage too, from screening and evaluation up to commercialization. The adoption of the OI paradigm can help the reduction of R&D costs, the sharing of the risks of innovation, and, in some cases reducing the time to market of new products and services. The second objective is innovation in its many forms (technological/operational/organizational innovation, business model innovation, etc.). The real benefit of both OI and crowdsourcing approaches can only be achieved when the creativity and knowledge generated by the external partner (e.g., crowd) are funneled and the value generated is absorbed through dedicated processes and tools, since OI is not possible without absorptive capacity as an internal capability of innovating companies. In the OI context, to successfully implement a crowdsourcing initiative, it is necessary to take into account the four dimensions identified (strategic, managerial, behavioral, technological) that must integrate and advance at the same pace.
5.6 Proposals for future research
The analysis of clusters and the identification of four characteristic dimensions allowed us to identify several emerging and promising questions to address future research. We summarized and sorted them in the table below, according to the four dimensions. The questions proposed in Table 3 aim, on the one hand, to systematize the main issues still open in the existing literature and, on the other, to propose novel ideas to inspire the future work of scholars and researchers. To provide a deeper comprehension of the issues debated in the paper, at the strategic level some of the main concerns regard the value creation and value capture, and how to measure the performance of the crowdsourcing process. We believe that future research should primarily identify metrics to quantify and monitor the impact of crowdsourcing on the innovation process, including whether or not there are differences by the industrial sector or type of company. As for the managerial dimension, future research should examine in more detail what factors determine the seeker's choice of a certain type of architecture and how the knowledge sharing and transfer towards external partners changes according to the type of inbound OI mechanism used. Moreover, there are questions still open regarding the management of intellectual property. As for the behavioral dimension, we mainly encourage a Social Network Analysis approach to better understand how the relationships within the solvers’ community evolve and to detect any differences in the way of relating in different types of crowdsourcing (competitive, collaborative, internal, external, via a broker, etc.). Future studies could also address the correlation between the successful performance of the crowdsourcing process, the commitment of the seeker, and the solvers’ motivation. Nowadays, new opportunities for firms and organizations to manage the innovation process in an open and collaborative way are favored by the development of digital technologies. Despite many pieces of evidence in this sense, the role of digital technologies in the context of OI deserves further investigation. In particular, the emergence of new technological paradigms, like blockchain and Big Social Data, opens new interesting opportunities for the development of OI and crowdsourcing. In our opinion, these questions should be addressed with priority to timely respond to current issues with relevant implications for both practitioners and academics.
6 Conclusions
This article constitutes the first attempt to carry out a comprehensive and systematic review of the literature on crowdsourcing and OI applying bibliometric techniques. It is based on the literature on both these topics published between 2008 and 2019 on the Scopus database from Elsevier. The aim is to respond to recent calls for a better understanding of the concept of crowdsourcing in relation to other similar and associated concepts (Estellés-Arolas and González-Ladrón-de-Guevara 2012). Despite the updated and rich dataset of documents analyzed and the systematic and rigorous approach used, this paper is not without limitations. First of all, the co-word analysis presented in the second part of the study was conducted on the keywords indicated by the authors of the papers, therefore there may be some distortions due to the choices made by the authors themselves; secondly, a different sensitivity in the calibration of the tool SciMAT could affect the outcomes. Taking all this into account, it is possible to draw conclusions and set out potential lines for future research. Also, we can derive the following implications for academia. By analyzing the literature, we identified the structure and the theoretical core elements from which research themes and problems were inherited and adapted in the context of OI and crowdsourcing. As for the content, through the co-word analysis, we identified ten thematic clusters, as deeply described above. This way, we provided a rich and timely discussion on the topics under examination, helping to provide a better understanding of crowdsourcing in the intellectual structure of OI. Looking at the themes that emerged from the co-word analysis, we noticed that the arguments taken two by two shed light on different aspects. Therefore, we organized the thematic networks into a framework (as shown in Fig. 17) along four dimensions (strategic, managerial, behavioral, technological), and then we proposed an integrated interpretation.
Regarding the implications for practitioners, these dimensions constitute the four pillars that an organization must analyze and correctly combine to benefit from the adoption of the crowdsourcing approach from an OI perspective. A clear strategy should inspire and form technology initiatives. Technology plays a major role, being a shaper as well as an enabler, but technological capabilities should be complemented by organizational and managerial skills. In turn, the managerial dimension, a key element in strategy implementation, must go hand in hand with the behavioral dimension, as the human factor is essential in this context.
Finally, for each dimension, we discussed specific research opportunities and indicated some bibliographical references. We summarized this range of issues that can be further explored in future studies in Table 3. We believe that OI and crowdsourcing are still appealing and promising for new research horizons and for their implementation at the corporate level.
Availability of data and material
The data that support the findings of this study are available from the corresponding author, upon reasonable request.
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Appendices
Appendix A: Fig. 3 legend
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Cricelli, L., Grimaldi, M. & Vermicelli, S. Crowdsourcing and open innovation: a systematic literature review, an integrated framework and a research agenda. Rev Manag Sci 16, 1269–1310 (2022). https://doi.org/10.1007/s11846-021-00482-9
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DOI: https://doi.org/10.1007/s11846-021-00482-9