. The numerical analysis literature offers many reliable methods, and should be used because alternatives derived from … difference methods from numerical analysis produces far superior approximations than do simple discrete-time systems …

understanding migration decisions, focusing on the costs of migrating. We construct and then estimate a spatial equilibrium model … where mobility is determined not only by idiosyncratic tastes, but also by moving costs that are origin … network caused by the construction of a capital city to identify the bilateral costs of moving between two regions. The mean …

countries have greater potential gains from trade relative to rich countries, while their welfare costs of autarky are similar … estimates of trade costs, while both the welfare cost of autarky and the volume of trade correlate weakly with trade costs. Thus …

is costlier for workers to become unemployed and, hence, allows them to reduce overall agency costs. In the unique robust …

adverse selection, switching costs, and regulation. I first document novel evidence of adverse selection and switching costs … the importance of switching costs for risk-sorting, and for policies that may affect risk sorting. I first find that in … Part D, switching costs help sustain an adversely-selected equilibrium and are likely to mute the ability of ACA policies …

Bayesian decision analysis (BDA) to minimize the expected cost of drug approval, where relative costs are calibrated using U …

conducted on a sample of more than 30,000 households. The findings suggest that the upfront investment costs are about twice the … broader societal benefits of energy efficiency investments, the costs still substantially outweigh the benefits; the average …