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To contain its surging population which rose to over a billion, the Chinese government issued the one-child per family policy in 1979. This policy required that every Chinese family would apply for a family planning certificate once the wife became pregnant for the first child.
This policy was effective in curbing the overgrowing population, however, this resulted in a labor force that lacked youths and a population that had more of aged people. In 2016, the Chinese government revoked this policy, thus allowing families to have up to two children.