His research and teaching focuses on international technology strategy, with a particular focus on cooperation between firms, the diffusion of innovative knowledge, and the effect of national institutions on both. He is particularly interested in the institutions and economy of Japan. He is also very interested in empirical research methods and recently published “The use of logit and probit models in strategic management research: Critical issues” (Strategic Management Journal, 2007) and the associated "complogit" package for Stata.