The theory for a general equilibrium ecosystem model that can include large number of interacting species is presented. Features include: 1) individual plants and animals are assumed to behave as if they are maximizing their net energy intake, 2) short and long-run equilibriums are obtained, 3)...

Endangered species are in predator/prey, mutualistic, competitive, or other types of relationships with many other species that share their habitat. Understanding these ecological relationships is an important part of designing endangered species policies. We employ a general equilibrium model...

Because endangered species are in predator/prey, competitive, and other relationships with many species who share their habitat, efficient conservation requires simultaneously considering the needs of many species. Understanding ecological relationships and understanding how human activity...

"(Ecologists) recommendations, when problems arise, tend to favor the preservation of nature, or to favor management programs that optimize only the biological side of the problem. It is not surprising that man, in self-interest, has usually chosen instead the recommendations of the economist or...

Although ecosystems provide myriad services to economies, only one service is considered in most renewable-resource models. The general equilibrium bioeconomic model introduced here admits a second service, and more importantly it accounts for how the two services are impacted by interactions...

A common strategy for limiting the total annual catch in a fishery is to restrict entry and season length. We examine the results of this strategy when entry limitation amounts to a limit on capital, but fishing firms can vary an unrestricted input, and thereby use the restricted input more...