We use the 2020 Small Business Credit Survey to study the sources of racial disparities in use of the Paycheck Protection Program (PPP). Black-owned firms are 8.9 percentage points less likely than observably similar white-owned firms to receive PPP loans. About 55 percent of this take-up...

The impact of children on the labour market outcomes ofwomen relative to men (the "child penalty") is well-documented, yet there is a paucity of evidence on the mechanisms behind it. I use 50 years of data from the Panel Study of Income Dynamics (PSID) to explore the importance of gendered norms...

We study the long-term determinants of the high rates of HIV infection in sub-Saharan Africa, particularly among women, with a focus on family structure and sexual behavior as shaped by the demographic shock following the transatlantic slave trade. First we show that, in clusters where polygyny...

Using an extensive survey addressing risk factors faced by the population in the shantytowns of Fortaleza, Brazil, the aim of this paper is to study interactions among different types of risk-taking behavior by youth, namely drug use and teenage pregnancy. We check the impact of factors such as...

It has been recently recognized that there is difference of preference between smokers and non-smokers. That is, smokers tend to be more impatient and prefer immediate benefits compared with non-smokers. If people follow their primitive instincts they will engage in sexual behavior. Hence,...

We study the long-term determinants of the high rates of HIV infection in sub-Saharan Africa, particularly among women, with a focus on family structure and sexual behavior as shaped by the demographic shock following the transatlantic slave trade. First we show that, in clusters where polygyny...

This paper explores the relationship between knowledge creation, entrepreneur-ship, and economic growth in the United States over the last 150 years. Accor-ding to the "new growth theory," investments in knowledge and human capital ge-nerate economic growth via spillovers of knowledge. But the...