Measuring the Unequal Gains from Trade *
研究国际贸易对不同消费者群体的相对价格影响，发现贸易通常有利于穷人，因为穷人消费更多集中在贸易部门。
Abstract Individuals that consume different baskets of goods are differentially affected by relative price changes caused by international trade. We develop a methodology to measure the unequal gains from trade across consumers within countries. The approach requires data on aggregate expenditures and parameters estimated from a nonhomothetic gravity equation. We find that trade typically favors the poor, who concentrate spending in more traded sectors.