The gaps in these countries’ labor markets – from software specialists to physicians to home health aides – will be immense. The European Union’s labor force will decline by almost 70 million workers in the next 40 years; in the absence of significant net immigration (combined with a much higher retirement age), European economies and social safety nets will shrivel.
如果西方以及其他地方（比如日本）的老龄化社会没有正确对待移民，当真正的浪潮来临时，它们将不知所措：婴儿潮一代在今后20年内退休。这些国家的劳动力市场——从软件专家、医生到家庭医疗助理等——将出现巨大的缺口。欧盟的劳动力将在今后40年减少近7000万名工人，如果没有大量的净移民，不大幅提高退休年龄，欧洲经济体和社会保障体系将力不从心。