The empirical investment literature studying the determinants of investment relies almost exclusively on truncated samples of publicly listed firms due to the lack of data on private firms. This truncation, however, is not random because listing is a choice for many firms, whereas others cannot...

We study whether carbon emissions affect firms' cost of capital by focusing on US corporate bond markets from 2005 to 2022. We show that firms with high carbon emissions have larger yields than firms with low emissions on the primary market, implying a higher cost of capital. However, this...

Being green is not easy, but is it also costly? We use US government procurement contracts to calculate the cost of being green. Comparing contracts that are nearly identical but for one being required by law to be green we find a cost premium of at least 20%. We further show that the quality of...

Objectives : To examine whether per capita income and income inequality are independently associated with teen birth rate in populous U.S. counties. Methods : This study used 1990 U.S. Census data and National Center for Health Statistics birth data. Income inequality was measured with the 90:10...

Social epidemiology has made a powerful case that health is determined not just by individual-level factors such as our genetic make-up, access to medical services, or lifestyle choices, but also by social conditions, including the economy, law, and culture. Indeed, at the level of populations,...