Abstract
Research Summary: Research on the internationalization of family firms has flourished in recent years, yet the mechanisms through which family involvement shapes the determinants, processes, and outcomes of internationalization remain little understood and largely undertheorized. We contribute to research at the intersection of international business and family business by examining the roles of different sources of family firm heterogeneity and the context in shaping the determinants, processes, and outcomes of business internationalization. Drawing on this analysis, we summarize the articles published in this special issue and set out an agenda for further research aimed at advancing a more fine‐grained and contextualized understanding of internationalization in family firms.