Previous literature has argued that the introduction of wind power significantly in creases grid congestion. This would potentially impose a negative effect on how regional production is allocated among generators (i.e., regional allocative efficiency). By com paring a U.S. regional electricity...

We leverage the timing of coalmine accidents to examine the effect of coal mining on air pollution. Safety regulations mandate that coal mining be suspended if a mine experiences an accident with 10 or more fatalities. We use a stacked difference-in-differences approach to compare counties with...