5. Conclusions
This study aims to examine the structure of servitization-related research and how the structure of the field might affect its future development. By analyzing more than 1,000 articles and their references based on a combination of qualitative and quantitative analyses, the content and boundaries of the domain were mapped, the characteristics of each stream of research elaborated upon, and opportunities for the future development of the field acknowledged. Thus, the present study will help newcomers to the field navigate the foggy research landscape and experienced researchers bridge these research communities. In both cases, mapping the structure of the field provides a starting point for understanding the conceptual roots and the development of the theories, concepts and methods utilized by the different communities, and it facilitates better positioning of future research.
5.1 Future research
The future development of the domain calls for greater knowledge accumulation within and across communities. The research outcomes are not sufficiently accumulative, as demonstrated by the large number of terms, transition models and service classifications and the increasing but still limited number of cross-citations. To improve the connectedness of scholarly communities, researchers must build on past research while promoting interdisciplinary studies and borrowing ideas from other research communities. As Lightfoot et al. (2013, p. 1429) conclude, “…it would be immensely valuable to bring together researchers from the different communities to debate and so refine our understanding of the major research themes.” While the PSS community should look for “theories about the business sense of servicing” in the management literature (Tukker and Tischner, 2006, p. 154), business scholars can benefit from the applied knowledge developed by PSS scholars.