"China’s one-child policy will be remembered as one of the costliest lessons of misguided public policymaking. Contrary to the claims of some Chinese officials, much of China’s fertility decline to date was realized prior to the launch of the one-child policy, under a much less strict policy in the 1970s calling for later marriage, longer birth intervals, and fewer births. In countries that had similar levels of fertility in the early 1970s without extreme measures such as the one-child policy, fertility also declined, and some achieved a level similar to China’s today. While playing a limited role in reducing China’s population growth, the one-child policy in the 35 years of its existence has created tens of millions, perhaps as many as 100 million, of China’s 150 million one-child families today. For these families, the harm caused by the policy is long-term and irreparable."