Efforts to restrict people’s movement between countries expose the soft underbelly of globalization: the deepening gap between countries’ mean incomes. Rather than poor countries growing faster than the rich (as we would expect from Economics 101), mainly the reverse is true.
限制国家间人员流动的努力暴露了全球化的软肋，那就是不同国家中等收入之间不断加深的差异。穷国的增长不仅没有超过富国（这是我们从经济学原理所预期的），情况恰恰相反。