產業經濟學研討會

【時間】 2016 年 12 月 16 日（周五） 12： 00－13： 30

【地點】 明商 0208 【主講】 曾辰航 助理教授 山東大學 【主題】 Endogenous Horizontal Product Differentiation in a Mixed Duopoly

【摘要】 

    This paper aims to study the strategic role of a welfare-maximizing public firm in a horizontal product differentiation model under both Bertrand and Cournot competition. We find that (i) the mixed homogeneous goods market arises under Bertrand firms when the product differentiation is very costly, but it is impossible under Cournot competition because the private obtains no incentives to produce homogeneous products with the public firm; (ii) when the investment is very effective, the public firm always takes the responsibility to undertake the differentiation investment under both Bertrand and Cournot, while the private firm responds to be a free-rider and enjoys the benefits from resulting product differentiation; (iii) Bertrand firms produce heterogeneous products in a wider range of parameter values compared to Cournot firms. However, when products are differentiated under both modes, Cournot competition leads to a higher degree of product differentiation. We also apply our model into international trade to see the effect of endogenous horizontal product differentiation on trade patterns.

【主講人介紹】

    曾辰航，美國密蘇里-哥倫比亞大學經濟學博士，山東大學助理教授。研究領域為產業組織理論，應用微觀經濟理論。 已經在Journal of Economics，Economics Letters， Pacific Economic Review 等國際知名期刊上發表多篇論文。

    歡迎相關領域老師和同學關注并參加！如有意作為點評老師或宣講學生參加前沿文獻選讀活動，可以聯系經濟學院李三希老師 （ sanxi@ruc.edu.cn）或者學生助理陳奕辰（ chenyichen@ruc.edu.cn）。