3.加入人力資本的交乘項後，外人直接投資於總樣本國家以及已開發樣本國家當中增加的同時，適當的增加就學年數則有助於減緩外人直接投資對於所得分配不均所造成的負面影響；而在開發中國家樣本，人力資本的增加並沒有顯著影響外人直接投資對於所得分配不均間的效果。 With the process of globalization, the impact of foreign direct investment (FDI) on income inequality is an important issue for many countries. To investigate this issue, this paper uses the yearly observations of 44 countries, including 20 developed countries and 24 developing countries, over the period from 1981 to 2010. By applying the pooled mean group (PMG) estimator of Pearan, Shin, and Smith (1999) to the data, I have the following findings:
1.In the full sample case, both inward and outward FDI significantly exacerbate income inequality.
2.In OECD countries, inward FDI exacerbates income inequality, but outward FDI reduce income inequality. In Non-OECD countries, inward FDI reduces income inequality, yet outward FDI exacerbates income inequality.
3.In the full sample and OECD countries, more educational attainment helps to reduce the effect of FDI on worsening income inequality, but in the Non-OECD countries, more educational attainment has no role to play on affecting the FDI inequality nexus.