A Ricardian Model with a Continuum of Goods under Nonhomothetic Preferences: Demand Complementarities, Income Distribution, and North‐South Trade
构建了一个连续商品李嘉图模型，商品按优先级排序，高指数商品仅由富裕家庭消费。南方在低收入弹性商品上有比较优势，北方相反。人口增长、生产率进步导致产品周期和南方贸易条件恶化，但南方国内收入再分配政策可改善其贸易条件，使所有家庭受益，代价是北方受损。
This paper develops a Ricardian model of trade in which goods are indexed according to priority and higher-indexed goods are consumed only by richer households. South (North) has a comparative advantage in lower- (higher-) indexed goods and, hence, specializes in goods with lower (higher) income elasticities of demand. Product cycles and a southern terms-of-trade deterioration result from faster population growth and uniform productivity growth in South and a global productivity improvement. South's domestic income redistribution policy can improve its terms of trade so much that every household in South may be better off, at the expense of North.