Konishi, Hideo; Yurtseven, Çaglar - In: Japan and the World Economy 29 (2014) C, pp. 36-45
In the 1950s and 60s, Japanese and US antitrust authorities occassionally used the degree of concentration to regulate industries. Does regulating firms based on their market shares make theoretical sense? We set up a simple duopoly model with stochastic R&D activities to evaluate market share...
