Influenza and air pollution each pose significant health risks with global economic consequences. Their shared etiological pathways present a case of compounding health risk via interacting externalities. Using instrumental variables based on changing wind direction, we show increased levels of...

This paper shows that the level of deforestation in Indonesia is positively related to the degree of ethnic fractionalization at the district level. To identify a casual relation we exploit the exogenous timing of variations in the level of ethnic heterogeneity due to the creation of new...