Research finds that hot weather causes a fall in birth rates nine months later. Evidence suggests that this decline in births is due to hot weather harming reproductive health around the time of conception. Birth rates only partially rebound after the initial decline. Moreover, the rebound...

Disability, work and retirement -- New age thinking: alternative ways of measuring age, their relationship to labor force participation, government policies, and GDP / John B. Shoven -- Comment / Erzo F. P. Luttmer -- Work disability: the effects of demography, health, and disability insurance /...