In 1937, John Maynard Keynes gave a lecture on “Some Economic Consequences of a Declining Population”. Many at the time felt the world was overpopulated and fewer people could only be a good thing, a view that Keynes himself shared. But the purpose of his lecture was to issue a warning: declining populations come with nasty economic side effects.
1937年，约翰•梅纳德•凯恩斯(John Maynard Keynes)写了《人口缩减的若干manbetx20客户端下载 后果》(Some Economic Consequences of a Declining Population)，告诫人们注意这个问题。当时许多人觉得世界人口过剩，人口减少只会是件好事，凯恩斯自己也这么看。然而，他的文章是为了发出警告：人口减少附带有严重的manbetx20客户端下载 副作用。
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