厦大 规模经济、不完全竞争和国际贸易.ppt
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1、CHAPTER 6ECONOMICS OF SCALE,IMPERFECT COMPETITION,AND INTERNATIONAL TRADEThe Imitation Lag HypothesisThe Imitation Lag HypothesisMichael V.Posner(1961)Imitation lag-demand lag=net lagThe Product Cycle TheoryMichael V.Posner(1966)A typical“new product”(F2)Dynamic comparative advantageTest:there shoul
2、d be a positive correlation between R&D expenditures and successful export performance by industry.Dinopoulos,Oehmker and Segerstrom(1993)The trade pattern in the Product Cycle TheorytimeProduction,consumption of productproductionconsumptionNew product stageMaturing product stageStandardized product
3、 stageExportsImportsThe Linder TheoryStaffan Burenstam Linder(1961)Demand-orientedOverlapping demandInternational trade in manufactured goods will be more intense between countries with similar per capita income levels than between countries with dissimilar per capita income levels.Tests:the greater
4、 the difference between the per capita incomes of country and its trading partner,the less intensely the two countries will trade with each other.Overlapping Demands in the Linder ModelIncome levelsGoodsABHGFEDCICountry 1s incomeCountry 1s demand and productionCountry 2s demand and productionCountry
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