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Working Paper
The Slaughter of the Bison and Reversal of Fortunes on the Great Plains
In the late 19th century, the North American bison was brought to the brink of extinction in just over a decade. We show that the bison?s slaughter led to a reversal of fortunes for the Native Americans who relied on them. Once the tallest people in the world, the generations of bison-reliant people born after the slaughter were among the shortest. Today, formerly bison-reliant societies have between 20-40% less income per capita than the average Native American nation. We argue that federal Indian policy that limited out-migration from reservations and restricted employment opportunities to ...
Working Paper
Technology adoption, mortality, and population dynamics
We develop a quantitative theory of mortality and population dynamics. We emphasize individuals' decisions to reduce their mortality by adopting better health technology. Adoption becomes cheaper as more individuals use better technology. It also confers a dynamic externality by increasing the future number of individuals who use the better technology. Our model generates a diffusion curve whose shape dictates the pace of mortality reduction. The model explains historical trends in mortality rates and life expectancies at various ages and population dynamics in Western Europe. Unlike ...
Working Paper
The Distributional Effects of COVID-19 and Optimal Mitigation Policies
This paper develops a quantitative heterogeneous agent–life cycle model with a fully integrated epidemiological model in which economic decisions affect the spread of COVID-19 and, conversely, the virus affects economic decisions. The calibrated model is used to study the distributional consequences and effectiveness of two mitigation policies: a stay-at-home subsidy that subsidizes reduced hours worked and a stay-at-home order that limits outside hours. First, the stay-at-home subsidy is preferred because it reduces deaths by more and output by less, leading to a larger average welfare ...
Working Paper
The Epidemic Effect: Epidemics, Institutions and Human Capital Development
Epidemics can negatively affect economic development unless they are mitigated by global governance institutions. We examine the effects of sudden exposure to epidemics on human capital outcomes using evidence from the African meningitis belt. Meningitis shocks reduce child health outcomes, particularly when the World Health Organization (WHO) does not declare an epidemic year. These effects are reversed when the WHO declares an epidemic year. Children born in meningitis shock areas in a year when an epidemic is declared are 10 percentage points (pp) less stunted and 8.2 pp less underweight ...
Working Paper
The Distributional Effects of COVID-19 and Mitigation Policies
This paper develops a quantitative life cycle model in which economic decisions impact the spread of COVID-19 and, conversely, the virus affects economic decisions. The calibrated model is used to measure the welfare costs of the pandemic across the age, income and wealth distribution and to study the effectiveness of various mitigation policies. In the absence of mitigation, young workers engage in too much economic activity relative to the social optimum, leading to higher rates of infection and death in the aggregate. The paper considers a subsidy-and-tax policy that imposes a tax on ...
Working Paper
Technology Adoption, Mortality, and Population Dynamics
We develop a quantitative theory of mortality and population dynamics. We emphasize individuals' decisions to reduce their mortality by adopting better health technology. Adoption confers a dynamic externality: Adoption becomes cheaper as more individuals use better technology. Our model generates a diffusion curve, whose shape dictates the pace of mortality reduction. The model explains historical trends in mortality rates and life expectancies at various ages, and population in Western Europe. Unlike Malthusian theories based solely on income, ours is consistent with the observed disconnect ...
Working Paper
The Distributional Effects of COVID-19 and Optimal Mitigation Policies
This paper develops a quantitative heterogeneous agent–life cycle model with a fully integrated epidemiological model in which economic decisions affect the spread of COVID-19 and vice versa. The calibrated model is used to study the distributional consequences and effectiveness of mitigation policies such as a stay-at-home subsidy and a stay-at-home order. First, the stay-at-home subsidy is preferred because it reduces deaths by more and output by less, leading to a larger average welfare gain that benefits all individuals. Second, Pareto-improving mitigation policies can reduce deaths by ...
Discussion Paper
Will Capital Flows through Global Banks Support Economic Recovery?
While policymakers around the world have aggressively and swiftly reacted to the common negative economic shock from COVID-19, the timing and forms of policy responses in the economic recovery stage may be more geographically differentiated. The range in policy responses, along with variations in the financial health of banks, likely will affect the flow of international credit through global banks. In this post, we ask whether, based on historical precedent, global banks are likely to provide additional support to the economic recovery in the locations they serve.
Discussion Paper
Does China’s Zero Covid Strategy Mean Zero Economic Growth?
The Chinese government has followed a “zero covid strategy” (ZCS) ever since the world’s first COVID-19 lockdowns ended in China around late March and early April of 2020. While this strategy has been effective at maintaining low infection levels and robust manufacturing and export activity, its viability is being severely strained by the spread of increasingly infectious coronavirus variants. As a result, there now appears to be a fundamental incompatibility between the ZCS and the government’s economic growth objectives.
Working Paper
Rising Geographic Disparities in US Mortality
The 21st century has been a period of rising inequality in both income and health. In this study, we find that geographic inequality in mortality for midlife Americans increased by about 70 percent from 1992 to 2016. This was not simply because states such as New York or California benefited from having a high fraction of college-educated residents who enjoyed the largest health gains during the last several decades. Nor was higher dispersion in mortality caused entirely by the increasing importance of “deaths of despair,” or by rising spatial income inequality during the same period. ...