In public sector procurement, social welfare often depends on the time taken to complete the contract. A leading example is highway construction, where slow completion times inflict a negative externality on commuters. Recently, highway departments have introduced innovative contracting methods...

When worker commutes are suboptimal, quits and moves are related. Either a quit, a move, or both can achieve an optimal commute. However, with fixed costs to quitting and moving, a quit or move alone is more likely than both together. Payroll records of a firm which relocated from the central...

We quantify the commute time savings associated with work from home, drawing on data for 27 countries. The average daily time savings when working from home is 72 minutes in our sample. We estimate that work from home saved about two hours per week per worker in 2021 and 2022, and that it will...

Diesel emissions from school buses expose children to high levels of air pollution; retrofitting bus engines can substantially reduce this exposure. Using variation from 2,656 retrofits across Georgia, we estimate effects of emissions reductions on district-level health and academic achievement....