We analyze demand substitution relationships among fish in the snapper/grouper complex in the southeast United States. Monthly data from 1977 to1992 are used to form a set of six fish aggregates. The dockside demands are analyzed in an empirical inverse demand system, developed for the purposes...

The potential importance of congestion effects on the management and rationing of recreational facilities and services in the presence of heterogeneous preferences were highlighted nearly twenty-five years ago by Freeman and Haveman (1977). While there have been a number of theoretical models...