We seek to explain why countries have adopted national Old-Age Insurance and Health Insurance programs. Theoretical work has posited several factors that could lead to this adoption: the strain from expanding capitalism; the need for political legitimacy; the desire to transfer to similar people;...

Using two hundred years of national and Massachusetts data on medical care and health, we examine how central medical care is to life expectancy gains. While common theories about medical care cost growth stress growing demand, our analysis highlights the importance of supply side factors,...

The construction of municipal water systems was a major event in the history of American cities -- bringing relief from disease, providing resources to combat fires, attracting business investment, and promoting development generally. Although the first large-scale municipal water system in the...

This is a rejoinder to a comment written by Cutler and Miller on our recent paper, "Public Health Efforts and the Decline in Urban Mortality" (IZA DP No. 11773), which reanalyzes data used by Cutler and Miller to investigate the determinants of the urban mortality decline from 1900 to 1936. Two...