关键词: 发达国家, 发展中国家, 进口, 出口, 收入差距

Abstract: We study the impact of international trade on with-in country income inequality in a sample of 125 countries. Our results suggest that: (1) to all the countries, the effects of import and export on with-in country income inequality are relatively small and insignificant, financial development and advanced education are important factors. (2) to the developed countries, import and export are important factors which affect on with-in country income inequality, the influence coefficients of import and export are relatively large and significant. Import contributes to increasing income inequality; export contributes to reducing income inequality. The index of economic freedom is also an important factor. (3) to all the developing countries, the influence coefficient of import and export is relatively small and insignificant, elementary education and foreign direct investment are important factors. (4) to Asian developing countries, import and export are important factors, import contributes to reducing income inequality; export contributes to increasing income inequality. The effects of international trade on income inequality in Asia developing countries are much more significant and larger than the results in all developing countries.

Key words: Developed Countries, Developing Countries, Import, Export, Income Inequality