关键词: 总和生育率, 递进总和生育率, 内在总和生育率, 对列生育率

Abstract: Based on 2017 China Fertility Survey data, this paper evaluates China's fertility levels and trends in the decade preceding the survey by adopting and comparing multiple fertility measures, including total fertility rate (TFR), parity progressionbased total fertility rate (PPTFR), intrinsic total fertility rate (ITFR) and lifetime fertility rate (LFR). The results show that the average of TFR, PPTFR and ITFR over the past decade in China stands at around 1.65, 1.67 and 1.74 respectively. PPTFR and ITFR provide increasingly better estimations of the actual fertility by controlling the tempo effects in TFR. The lifetime fertility rate of cohort aged 35 and above is over 1.6 and increasing with age. Based on the multiple estimations, our main conclusion is that Chinas recent fertility level is above 1.6, and the implementation of the twochild policy has significantly increased the fertility level. Reduction in the TFR for first birth is largely driven by the tempo effect of delayed age at marriage and birth, while the marked increase in the TFR for second birth reflects the birthbunching effect due to the newly implemented two-child policy.

Keywords: Total Fertility Rate, Parity Progression-based Fertility Rate, Intrinsic Fertility Rate, Lifetime Fertility Rate