If we can make meaningful economic progress in the coming generations, one of the pivotal reasons will be that people are allowed to move more freely. Advanced countries, with their adverse demographic trends, need migrants, as do developing countries – not only for migrants’ economic contributions, but also for the social and cultural diversity that they bring.
除统计数据外，没有什么比人员流动更能体现世界的相互依赖。如果未来几代人能够实现有意义的经济进步，关键原因之一是人们可以自由地流动。发达国家人口日渐萎缩需要移民，发展中国家也同样如此——这不仅是因为移民的经济贡献，还因为社会文化多样性同样是移民的产物。