Across western North America, invasive plant species and elevated levels of nitrogen are threatening the productivity of rangelands. A bioeconomic model of stocking cattle on these rangelands is used to show that optimal stocking depends on the competition between native grasses and the...

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...

Ecosystems and economies are inextricably linked: ecosystem models and economic models are not linked. Consequently, using either type of model to design policies for preserving ecosystems or improving economic performance omits important information. Improved policies would follow from a model...

Ecosystems and economies are inextricably linked: ecosystem models and economic models are not linked. Consequently, using either type of model to design policies for preserving ecosystems or improving economic performance omits important information. Improved policies would follow from a model...

"(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...

Is the incumbent local exchange carrier (LEC) a natural monopolist? The analysis indicates that the LEC cost function is not supportable: LECs appear to be either nonsustainable natural monopolies or nonnatural monopolies the set of services they currently offer. However, recent technological...

The electric industry is experiencing increasing competition in generation encouraged by non utility generators and regulatory agencies. An electric utility's problem of satisfying stochastic demand with either power purchased from non utility generators or with its own generators is examined....

Recent accounting changes, for the first time, permit the use of fair value in the primary financial statements for held-to-maturity (HTM) bank loans. While the use of fair value has historically attracted significant discussion and debate, there is little information in the public domain on how...

Entry of new firms into the electric power industry is becoming commonplace. The entrants typically are unregulated firms that compete with regulated electric utilities only in the generation stage of the latter's vertically integrated structure. Because of the asymmetric regulatory treatment of...