The concentration of the working-age population, which is due partly to the demographic transition and partly to the in-migration of foreign workers, is potentially beneficial for development, as it may provide what has been referred to as a demographic window of opportunity.
部分由于人口转型，部分由于外国工人迁入，工龄人口增多，这种现象很可能对发展大有助益，因为它可能提供机会，打开通称的人口机会之窗。