Table 1.

An overview of methodological and theme variety of the literature on academic spin-offs’ internationalization.

Characteristic	Number of studies
Method
quantitative	18
qualitative	12
conceptual	2
Theme
factors fostering academic spin-offs’ (fast and/or successful) internationalization	19
academic spin-offs’ internationalization processes	10
scholars’ involvement in or plans to become involved in internationalized academic spin-offs	6
internationalized (versus local) academic spin-offs’ (financial) performance	6
differences and similarities between internationalized (and local) academic spin-offs	4
impediments to academic spin-offs’ (fast) internationalization and ways for overcoming them	3
universities’ role in academic spin-offs’ internationalization	3
reasons for academic spin-offs’ (fast) internationalization	3
under-researched topics in the literature on academic spin-offs’ internationalization	1

Source: based on Appendix 1.