Maybe Next Month? Temperature Shocks and Dynamic Adjustments in Birth Rates.

Maybe Next Month? Temperature Shocks and Dynamic Adjustments in Birth Rates.
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DOI:
10.1007/s13524-018-0690-7
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发表时间:
2018-08
期刊:
影响因子:
3.5
通讯作者:
Guldi M
Guldi M
中科院分区:
法学1区
文献类型:
--
作者:
Barreca A;Deschenes O;Guldi M

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我们估计了1931年至2010年间温度冲击对美国出生率的影响。我们发现,平均气温高于华氏80度的日子会导致8至10个月后的出生率大幅下降。与之前的研究不同,我们的研究表明,在最初的下降之后,在接下来的几个月里,出生率会出现部分反弹,这意味着人们通过改变受孕月份来减轻一些生育成本。这种转变有助于解释美国夏末出生高峰期的现象。我们还提出了新的证据,表明炎热天气最有可能通过生殖健康而不是性活动损害生育能力。历史证据表明,空调可以用来大幅抵消高温造成的生育成本。
We estimate the effects of temperature shocks on birth rates in the United States between 1931 and 2010. We find that days with a mean temperature above 80°F cause a large decline in birth rates 8 to 10 months later. Unlike prior studies, we demonstrate that the initial decline is followed by a partial rebound in births over the next few months, implying that populations mitigate some of the fertility cost by shifting conception month. This shift helps explain the observed peak in late-summer births in the United States. We also present new evidence that hot weather most likely harms fertility via reproductive health as opposed to sexual activity. Historical evidence suggests that air conditioning could be used to substantially offset the fertility costs of high temperatures.
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发表时间: 2009-05-01
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