Microeconomics, Industrial Organization, Managerial Economics, Oligopoly Theory
Recent Research Interests
My research interests lie in the field of microeconomics. In particular, I am exploring oligopoly competition of multi-national firms under exchange-rate and cost uncertainty, product line strategic competition of multi-product firms in oligopoly, innovation and competition in two-sided oligopolistic markets with network externality, oligopolistic competition of firms under asymmetric information (on which I had a major article in Journal of Economic Theory), and corporate finance and oligopolistic competition. My explorations are all theoretical rather than empirical, and I have studied the first and second topics enthusiastically these few years. On the second topic, I have just published a co-authored paper in Economics Letters and am at present trying to extend the analysis.
- Shinkai, T. (2000) ‘Second Mover Disadvantages in a Three-Player Stackelberg Game with Private Information,’ Journal of Economic Theory 90(2): 293–304.
- Kitamura, R. and Shinkai, T. (2015) ‘Product Line Strategy within a Vertically Differentiated Duopoly,’ Economics Letters 137 (December): 114–117.