| 规模经济、异质性企业及其国际化——对Krugman模型的一般性扩展 |
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| 引用本文： | 张盛勇.规模经济、异质性企业及其国际化——对Krugman模型的一般性扩展[J].经济经纬,2012(4):51-55. |
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| 作者姓名： | 张盛勇 |
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| 作者单位： | 东北财经大学,辽宁大连,116025 |
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| 摘 要： | 出口的"本地生产、异国销售"特征,会使企业获得产量增加导致的规模经济效应。笔者证明了如果这个效应足够大,即使国外市场的利润为负,企业仍然可能选择出口,这是对Melitz模型的一个修正:企业生产率即使达不到ZCP条件也可以出口。加入规模经济因素后,Krugman模型的本地市场效应,Melitz模型的自选择效应,张杰等模型的制度质量效应都可以纳入本文统一的分析框架。
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| 关 键 词： | 新贸易理论 新新贸易理论 规模经济 生产率 |
Economies of Scale, Heterogeneous Productivity and Internationalization——An Extension Study of Krugman Model |
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| ZHANG Sheng-yong.Economies of Scale, Heterogeneous Productivity and Internationalization——An Extension Study of Krugman Model[J].Economic Survey,2012(4):51-55. |
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| Authors: | ZHANG Sheng-yong |
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| Institution: | ZHANG Sheng-yong(Dongbei University of Finace and Economics,Dalian 116025,China) |
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| Abstract: | The feature of "local products and foreign sales" of export may produce economies of scale.This paper introduces economies of scale in the model of Melitz(2003),and draws a different conclusion:if the economies of scale induced by export is large enough,even if the profits of exports is negative,companies are still likely to enter the international markets.Through dividing the fixed costs,this paper incorporates "local market effects" of Krugman(1980),self-selection effects of Melitz(2003),and institutional quality effects of Zhang Jie etc.(2008) into a unified analytical framework. |
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| Keywords: | New Trade Theory New New Trade Theory Increasing Returns Heterogeneous Productivity |
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