Table 1

Overview of some key references within the SME context regarding each stream

Author(s) and yearStreamMethodologyKey findingsResearch gaps (to address)
Adrodegari and Saccani (2020) SLiterature-based approach, 2 SMEsDeveloping a servitization maturity model for assessing and positioning companies in the servitization journeyEmpirical evidence mainly concerns large multinational companies, while SMEs' attempts to servitize are not much investigated
Queiroz et al. (2020) SPLS-SEM modeling, 176 SMEsA positive relationship between servitization and SME performanceScarcity of empirical evidence demonstrating the impact of servitization on SME performance
Weerawardena et al. (2020) IPLS-SEM modeling, 157 SMEsThe results showed that market learning drives other learning capabilities in the firm to contribute collectively to innovation and, in turn, international market outcomesThe challenges presented by the unique characteristics of services particularly in marketing internationally must be recognized. Also, the knowledge resources and capabilities that drive service innovation-based competitive advantages remain under-researched. In addition, it is questioned in the service innovation literature whether service innovation-based competitive advantages can be sustained
Benitez et al. (2020) ESurvey and interviews, 87 SMEsThe final framework shows that the ecosystem's mission shifted from accessing innovation funds to Industry 4.0 solution co-creation and, then, to smart business solutions co-creationLittle is known about how to systematize the efforts of SMEs through the promotion of innovation ecosystems for the co-creation of Industry 4.0 solutions. Prior research has predominantly focused on Industry 4.0 technology adopters, i.e. the demand side, while there is still a gap in the literature referring to the study of technology providers, i.e. the offering side
Kahle et al. (2020) ECase study method, 120 SMEsDeveloping a conceptual framework that presents the required characteristics of an innovation ecosystem to offer smart products, and discloses the relationships among these characteristicsThe development of smart products requires knowledge and capabilities that single companies usually do not possess, thus creating new opportunities for cooperation through the establishment of innovation ecosystems focused on smart products
Peillon and Dubruc (2019) DSLiterature analysis and multiple case study, 8 SMEsIdentifying the main barriers that French manufacturing SMEs face in their move toward digital servitizationEven though digitalization can offer vast opportunities for SMEs to enter new markets, the digital transformation path is not obvious, and manufacturing SMEs face major barriers and obstacles to digital servitization
Genc et al. (2019) IPLS-SEM modeling, 235 SMEsThe results indicated that the degree of internationalization positively affects innovation performance and, more importantly, that this relationship is indirect and fully mediated by the market and entrepreneurial orientation of SMEsLittle effort has been made to test and examine how internationalization fosters or hinders a firm's innovation performance. In fact, there is no consensus about the underlying mechanism of this relationship and direct and/or indirect effects of seeking internationalization on innovation
Radziwon and Bogers (2019) EMultiple case study, 7 SMEsThe results established a particular set of challenges for the SMEs due to the misalignment between their business models and their ecosystemsFew studies have focused on open innovation in business ecosystems, thus amplifying the lack of understanding of how SMEs can manage open innovation in such ecosystems
Valtakoski and Witell (2018) SSurvey study, 224 SMEsStudying the impact of back-office (BO) service capability and front-office (FO) service capability, and how firm age influences the impact of these service capabilities on SME performanceUnderexplored areas in addressing the impact of capabilities on firm performance
Lack of clearance between servitization-related capabilities and their relative importance
Coreynen et al. (2017) S, DSMultiple case study, 4 SMEsUnderstanding how digitalization can enable manufacturing companies to offer a higher level of value-added services to their customersNot enough is known about how manufacturers can effectively leverage digital means to increase their service offering
Galkina and Chetty (2015) IMultiple case study, 7 SMEsThe results showed how entrepreneurs network with interested partners instead of carefully selecting international partners according to predefined network goalsThe internationalization process often lacks strategic orientation. This relates to the fact that decision making is done under conditions of uncertainty and goal ambiguity, and the relationship component makes this process difficult to predict
Kowalkowski et al. (2013) S, EMultiple case study, 13 SMEsInvestigating how SMEs construct new value constellations that enable value creation through servicesNo explicit investigations consider how SMEs manage to infuse service into their business

Note(s): S = Servitization, DS = Digital Servitization, E = Ecosystem, I = Internationalization

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