A general theory of cross-subsidization due to infra-marginal support is developed. Two sources of output distortion are identified: exit deterrence and extra-marginal output. Some firms would not be in business without the subsidy. Cost savings due to declining average costs are always greater...

We survey landowners to investigate the costs associated with the presence of permanent or seasonal wetland areas in cropland. We find, as predicted by our conceptual model, that dispersion of wetland areas imposes substantial inconvenience costs for producers but that costs respond nonlinearly...