In 1971 President Nixon declared war on cancer and increased the federal funds allocated to cancer research dramatically. Thirty years later, many have declared this war a failure. Overall cancer statistics confirm this view: age-adjusted mortality in 2000 was essentially unchanged from the...

We document a within-month mortality cycle where deaths decline before the 1st day of the month and then spike after the 1st. This cycle is present across a wide variety of causes and demographic groups. A similar cycle exists for a range of activities, suggesting the mortality cycle may be due...

I discuss the health transition in the United States, bringing new data to bear on health indicators, and investigating the changing relationship between health, income, and the environment. I argue that scientific advances played an outsize role and that health improvements were largest among...

The paper first attempts to demonstrate the fundamental importance of the social context. The related evidence is drawn from recent theoretical and empirical advances in the study of subjective well-being. Treating people's self-assessments of the quality of their lives as valid measures of...

This paper discusses the two leading views of history and political institutions. For some scholars, institutions are mainly products of historical logic, while for others, accidents, leaders, and decisions have a significant impact. We argue that while there is clear evidence that history...

Thomas Piketty's monumental Capital in the Twenty-First Century has transported us to a higher understanding of historical movements in inequality. This essay ranks the promise of different paths that scholars can usefully follow from the point to which his book has guided us. The main path to...

This research explores the biocultural origins of human capital formation. It presents the first evidence that moderate fecundity and thus predisposition towards investment in child quality was conducive for long-run reproductive success within the human species. Using an extensive genealogical...

Using data from the last 150 years in a small set of countries, and from the postwar period in a large set of countries, we show that large investments in state primary education systems tend to occur when countries face military rivals or threats from their neighbors. By contrast, we find that...

This research establishes that the emergence, prevalence, recurrence, and severity of intrastate conflicts in the modern era reflect the long shadow of prehistory. Exploiting variations across national populations, it demonstrates that genetic diversity, as determined predominantly during the...

Just how unequal were the incomes of different classes of Russians on the eve of Revolution, relative to other countries, to Russia's earlier history, and to Russia's income distribution today? Careful weighing of an eclectic data set provides provisional answers. We provide detailed income...