The Contribution of Infrastructure Investment to Britain’s Urban Mortality Decline 1861-1900.
Economic History Review, 72(1) pp 233-259, February 2019.
Awarded 2020 T.S. Ashton Prize for best paper in Economic History Review by a junior scholar.
Abstract
It is well-recognized that both improved nutrition and sanitation infrastructure are important contributors to mortality decline. However the relative importance of the two factors is difficult to quantify, since most studies are limited to testing the effects of specific sanitary improvements. This paper uses new historical data regarding total investment in urban infrastructure, measured using the outstanding loan stock, to estimate the extent to which the mortality decline in England and Wales between 1861 and 1900 can be attributed to government investment. Fixed effects regressions indicate that infrastructure investment explains approximately 22-25% of the decline in mortality between 1861 and 1900, once time trends are accounted for. Since these specifications may not fully account for the endogoneity between investment and mortality, I perform additional specifications using lagged investment as an instrument for current investment. These estimates suggest that government investment was the major contributor to mortality decline, explaining up to 60% of the reduction in total urban mortality between 1861 and 1900 and 88% between 1861 and 1890. Additional results indicate that investment in urban infrastructure led to declines in mortality from both waterborne and airborne diseases.