期刊
JOURNAL OF POLITICAL ECONOMY
卷 119, 期 4, 页码 721-765出版社
UNIV CHICAGO PRESS
DOI: 10.1086/662628
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We develop a framework for studying trade in horizontally and vertically differentiated products. In our model, consumers with heterogeneous incomes and tastes purchase a homogeneous good and make a discrete choice of quality and variety of a differentiated product. The distribution of preferences generates a nested-logit demand structure such that the fraction of consumers who buy a higher-quality product rises with income. The model features a home-market effect that helps to explain why richer countries export higher-quality goods. It provides a tractable tool for studying the welfare consequences of trade and trade policy for different income groups in an economy.
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