Virtually all theories of economic growth predict a positive relationship between population size and productivity. In this paper I study a particular historical episode to provide direct evidence for the empirical relevance of such scale effects. In the aftermath of the Second World War about...

Innovation policy can be a crucial component of governments' responses to crises. Because speed is a paramount objective, crisis innovation may also require different policy tools than innovation policy in non-crisis times, raising distinct questions and tradeoffs. In this paper, we survey the...

In 1919, John Maynard Keynes wrote his famous tract The Economic Consequences of the Peace. In that work, he anticipated the collapse of the first era of globalization that began in the mid-nineteenth century. He admonished the short-sighted assumption that these years of relative peace and...

This paper investigates the empirical relationship between inclusion and state capacity, as theorized by Besley and Persson (2009). We examine the impact of racial discrimination on Black U.S. military enlistment during the onset of WWII. We find that discrimination had a large and negative...

What is the impact of warfare on inequality and the social contract? Using local data on bombing, the evolution of wealth inequality and vote shares for the Labour Party in England around World War II we establish two results. First, on average, we find no impact of bombing on inequality....

We analyze wartime prosthetic device patents to investigate how procurement policy affects the cost, quality, and quantity of medical innovation. Analyzing whether inventions emphasize cost and/or quality requires generating new data. We do this by first hand-coding the economic traits...

This paper studies the effects of the USPTO's patent secrecy program in World War II, under which over 11,000 U.S. patent applications were issued secrecy orders which halted examination and prohibited inventors from disclosing their inventions or filing in foreign countries. Secrecy orders were...

During World War II, the U.S. government launched an unprecedented effort to mobilize science for war: the newly-established Office of Scientific Research and Development (OSRD) entered thousands of R&D contracts with industrial and academic contractors, spending one to two orders of magnitude...

World War II was one of the most acute emergencies in U.S. history, and the first where the mobilization of science and technology was a major part of the government response. The U.S. Office of Scientific Research and Development (OSRD) led a major research effort to develop technologies and...

This paper considers the effect of the First World War on large-scale businesses in Second-Industrial-Revolution industries like steel, electricity, and chemicals. For firms in the nations of the Entente, we argue, the war mainly interrupted long-term trends that resumed in the aftermath of the...