Tens of millions of migrants have left the Chinese countryside for the cities. China scholar Weiping Wu explains why this is beneficial to China, but could also create problems in the future.
Since its foundation, the United States has been the world's "melting pot." The U.S. remains a multicultural nation, but migration patterns have changed. See the latest trends.
Since the fall of the Berlin Wall, over 1.5 million people – mostly women – have left eastern Germany to seek jobs in the West. This undercuts the economic future of a region already saddled with low fertility, unemployment, and industrial decline.
