研討日期	2016年2月20日上午12:00 ~ 13:10
研討地點	台大社會科學院710討論室
主講題目	Multi-Market Competition, R&D, and Welfare in Oligopoly
作者	Akio Kawasaki, Ming Hsin Lin, and Noriaki Matsushima
文獻出處	Southern Economic Journal
主講人	丁虹仁
參加人員	曹古駒、丁虹仁、林燕淑、呂得成、施姵全、梁文榮、林晏如、高國峯、王光正、周冰瑤、彭正浩
摘要	We investigate a multi-market Cournot model with strategic process research and development (R&D) investments wherein a multi-market firm meets new competitors that enter one of the markets. We show that entry can enhance the total R&D expenditures of the multi-market firm. Moreover, the incumbent’s profit nonmonotonically changes as the number of entrants increases. Depending on the fixed entry costs and R&D technologies, both insufficient and excess entry can appear. Our results imply that diversification of their products can be a useful strategy for firms.