标准贸易模型
A Standard Model of a Trading EconomyThe Welfare Effect of Changes in the Terms of TradeTerms of tradeThe price of the good a country initially exports divided by the price of the good it initially imports. 一国出口产品价格除以该国进口产品价格) (一国出口产品价格除以该国进口产品价格) A rise in the terms of trade increases a country’s welfare, while a decline in the terms of trade reduces its welfare. 个国家的福利随着贸易条件的改善而上升， (个国家的福利随着贸易条件的改善而上升
,随着 恶化而下降。) 贸易条件的 恶化而下降。)