The paper provides new insights into the productivity of teams and the relationship between the inspector and the inspected party. Exploiting exogenous variation in the number of inspectors that are sent to offshore oil and gas platforms in the Gulf of Mexico, we find that adding an inspector...

The paper provides new insights into the productivity of teams and the relationship between the inspector and the inspected party. Exploiting exogenous variation in the number of inspectors that are sent to offshore oil and gas platforms in the Gulf of Mexico, we find that adding an inspector...

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...

The presence of a heavy truck on the road can impose an externality if accidents occur that would not have otherwise. We find each additional truck on the road increases the risk of a truck accident—but also, at an even higher rate, the risk of a car-on-car collision. Our estimates imply two...

The presence of a heavy truck on the road can impose an externality if accidents occur that would not have otherwise. We find each additional truck on the road increases the risk of a truck accident--but also, at an even higher rate, the risk of a car-on-car collision. Our estimates imply two...

Cash penalties in US environmental court cases can be mitigated if a defendant volunteers to undertake an in-kind project in the location of their violation, for example, by creating an education program or building a public park. A stated goal of the policy is to address environmental justice...