研討日期

2008121310:20 ~ 13:00

研討地點

台大社會科學院經濟系會議室

題目

Tariffs and Quotas equivalence under vertically related markets

作者

Cheng-Hau Peng

Hong Hwang

文獻出處

Working Paper

報告人

Cheng-Hau Peng

參加人員

黃鴻、林燕淑、陳宏易、吳芝文、彭正浩、陳金盛、高國峰、林晏如、蔡明芳、涂光億、王家琪、張志偉、鍾嘒陵 、曾靜枝、丁虹仁

摘要

By adding an upstream firm to the Cournot model a la Hwang and Mai (1988), the paper examines the issue of tariffs and quotas equivalence under two different pricing strategies by the upstream firm which includes two-part tariff and wholesale pricing. We find that the market price for the final good under a tariff is higher (lower) than that under the equivalent quota (i.e., the quota is set at the level of import under the tariff), if the upstream firm adopts two-part tariff pricing (wholesale pricing).  This result is in sharp contrast to the finding of Hwang and Mai (1988) and Fung (1989). We also compare the social welfare under free trade and that under the equivalent quota (i.e., the quota is set at the level of import under free trade).  Surprisingly, the social welfare under free trade is necessarily lower than that under the equivalent quota. In addition to the case of two-part tariffs, we also study the cases in which the upstream firm adopts wholesale pricing.

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