タケダ シロウ   TAKEDA SHIRO
  武田 史郎
   所属   京都産業大学  経済学部 経済学科
   職種   教授
言語種別 英語
発行・発表の年月 2010/01
形態種別 研究論文
査読 査読あり
標題 A computable general equilibrium analysis of the welfare effects of trade liberalization under different market structures
執筆形態 その他
掲載誌名 International Review of Applied Economics
巻・号・頁 24(1),pp.75-93
著者・共著者 Shiro Takeda
概要 Using a static world computable general equilibrium model with 16 sectors and 14 regions, this paper compares welfare effects of trade liberalization of the perfectly competitive model and eight imperfectly competitive models. Our main findings are as follows. First, the size of the welfare impact systematically depends on the type of model. Second, the welfare impact of the perfectly competitive model is not necessarily smaller than those of imperfectly competitive models. Third, the integrated market model tends to have a larger welfare impact than the segmented market model. Fourth, the model with the fixed number of firms tends to have a small welfare impact. Finally, the variety effect tends to have a stronger influence on the welfare effects of liberalization than do scale and markup effects. Differences in the models can be viewed as differences in the economic structures of the regions being analyzed, and therefore the analysis in this paper makes it possible to derive policy implications with regard to the relationship between economic structure and trade liberalization. © 2010 Taylor &amp
Francis.
DOI 10.1080/02692170903424307
ISSN 0269-2171