Abstract
The engagement of firms in multiple simultaneous strategic alliances with different partners has become a ubiquitous phenomenon in today’s business landscape. This article offers a review of the extant alliance portfolio literature and organizes it around three key research areas: (a) the emergence of alliance portfolios, (b) the configuration of alliance portfolios, and (c) the management of alliance portfolios. The article also highlights existing gaps in the present understanding of alliance portfolios and outlines a research agenda by identifying key research questions and issues in the areas where further research is needed.