Market completeness has important implications for household behavior. I firmly reject complete markets for smallholders but am unable to do so for non-smallholders. This leads to important differences in production behavior: smallholders reallocate labor across activities less in response to...

How much risk does a heavy truck impose on highway safety? To answer this question, we look at the rapid influx of trucks during the shale gas boom in Pennsylvania. Using quasi-experimental variation in truck traffic, we isolate the effect of adding a truck to the road. We find an additional...