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A Simple Model of Trade with Heterogeneous Firms and Trade Policy
Marcelo Fukushima,Toru Kikuchi 한양대학교 경제연구소 2009 JOURNAL OF ECONOMIC RESEARCH Vol.14 No.1
We build a Chamberlinian-Ricardian two-country-two-sector model with heterogeneity of firms in terms of fixed costs and analyze the effects of trade policy. We consider efficiency gaps between countries in marginal and fixed costs, a monopolistically competitive sector in which every new entrant faces increasing fixed costs of production. It is shown that an increase in a unilaterally imposed tariff increases the number of firms of the tariff-imposing country and decreases the number of firms of the tariff-imposed country, possibly reverting the position of net importer to net exporter of varieties. A small tariff is likely to be beneficial to the tariff-imposing country when fixed costs are low in both countries and the tariff-imposing country is relatively efficient in terms of fixed costs.
Competing Communications Networks and International Trade
( Toru Kikuchi ),( Marcelo Fukushima ) 세종대학교 경제통합연구소 (구 세종대학교 국제경제연구소) 2008 Journal of Economic Integration Vol.23 No.1
This paper investigates the effects of competing communication networks on trade patterns in a Chamberlinian-Ricardian model of monopolistically competitive firms with a continuum of industries that require communication services in production. We conclude that intraindustry trade between different networks is determined by the relative size of networks and technological differences, and that a network will not have an incentive to expand indefinitely, despite network externalities.