... mainly in China and India, have yet to make the transition. This movement of workers into the marketplace reduced world wages, inflation, inflation expectations, and interest rates, and accordingly ... clearly an outlier among the global trading partners, and that calls for a broader explanation of the causes of U.S. income inequality. Part of the explanation is the more elaborate welfare systems, ... comparison scale were above average in both math and science, by the time they reached their last year of high school they had fallen well below the international average. The leading nations included...