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タイトル: Multiproduct Duopoly with Vertical Differentiation
著者: Cheng, Yi-Ling
Peng, Shin-Kun
Tabuchi, Takatoshi
著者(別言語): 田渕, 隆俊
キーワード: JEL Classication:D21, D43, L11, L13
multiproduct firms
market segmentation
quality competition
vertical product di¤erentiation
発行日: 2010年4月
出版者: 日本経済国際共同センター
抄録: The paper investigates a two-stage competition in a vertical di¤erenti- ated industry, where each rm produces an arbitrary number of similar qualities and sells them to heterogeneous consumers. We show that, when unit costs of quality are increasing and quadratic, each rm has an incentive to provide an interval of qualities. The nding is in sharp contrast to the single-quality outcome when the market cover- age is exogenously determined. We also show that allowing for an interval of qualities intensi es competition, lowers the pro ts of each rm and raises the consumer surplus and the social welfare in comparison to the single-quality duopoly.
内容記述: Subsequently published in B. E. Journal of Theoretical Economics, 2011, vol. 11, Article 16, pp. 1-27.
URI: http://hdl.handle.net/2261/35795
その他の識別子: CIRJE-F-739
出現カテゴリ:061 ディスカッションペーパー
Discussion Paper F series (in English)


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