Notes
Ronald J. Vogel is Professor of Economics at the University of Arizona. Work on this paper was supported in part by Grant No. HA‐R‐000020–04 to the southwest Border Rural Health Research Center at the University of Arizona from the Office of Rural Health Policy, Health Resources and Services Administration, Public Health Service, USDHHS. Without implicating them, the author gratefully acknowledges the valuable comments of Ralph Andreano, Thomas Getzen, Michael Morrisey, Thomas Selden, Gordon Tullock, and David Warner on previous presentations and versions of this paper. The comments of two anonymous referees were also extremely helpful for the final revision.