Using data from the state and national Youth Risk Behavior Surveys for the period 1991-2005, Carpenter and Cook (2008) found a strong, negative relationship between cigarette taxes and youth smoking. We revisit this relationship using four additional waves of YRBS data (2007, 2009, 2011, and...

A non-trivial portion of traffic fatalities involve alcohol or illicit drugs. But does the use of alcohol and illegal substances - which is linked to depression, suicide, and criminal activity - also reduce academic performance? Recent studies suggest that drinking alcohol has a negative, if...

Studies have estimated the relationship between psychological stress and birth weight by exploiting natural disasters and terrorist attacks, both of which could affect fetal health through other channels. Using data from the National Vital Statistics System for the period 1969-2004, we estimate...

Climate change is predicted to affect global rainfall patterns, but there is mixed evidence with regard to the effect of rainfall on civil conflict. Even among researchers who argue that rainfall reduces civil conflict, there is disagreement as to the underlying mechanism. Using data from the...