The success of international alliance depends largely on the extent to which partner firms work seamlessly with each other. In this study, we identify three kinds of partner fit: fundamental, strategic and behavioral fit, and illuminates that how various fits affect the relationship of partnership and the resulting performance of international alliance. Furthermore, this study also proposes a model of the dynamics of partner fit in the process of alliance formation, and examines, through the internationalization experience of construction consulting firms in Taiwan, the performance implication when partners reach different kinds of fits in international alliances. Keywords: International Strategy Alliance, Partnership, Fit, Performance
