To meet the growing demand for freshwater, many regions have increased pumping of groundwater in recent years, resulting in declining groundwater levels worldwide. A promising development is technical change regarding groundwater substitutes such as desalination and wastewater recycling....

In this paper, an integrated model for the prevention and control of an invasive species is developed. The generality of the model allows it to be used for both existing and potential threats to the system of interest. The deterministic nature of arrivals in the model allows for a clear...

We show that Stiglitz’s (1974) classic principal-agency theory of share tenancy does not imply, as commonly supposed, that the incidence of share tenancy increases with the tenant’s degree of risk aversion nor that share contracts are superior to fixed-lease contracts for risk averse...

Thinking about population as a driver of agricultural development provides insights into induced technical and institutional change, whether it be Esther Boserup's declining fallow period, modern crop varieties, or the specialization pyramid that arises in labor-intensive agriculture. The...

This paper develops a regional hydrologic-ecologic-economic model of groundwater use and a nearshore ecosystem. Particularly, we model coastal groundwater management and its effects on discharge, nearshore water quality, and marine biota (e.g., indigenous marine algae). We show that...

Despite abundant rainfall and groundwater resources, the State of Hawai'i has managed to erect so many barriers to efficient use that serious conflicts have erupted over use rights to water. In what is currently the most prominent battle, environmental and agricultural interests of windward...

We optimize groundwater management in the presence of marine consequences of submarine groundwater discharge (SGD). Concern for marine biota increases the optimal steady-state head level of the aquifer. The model is discussed in general terms for any coastal groundwater resource where SGD has a...

Among the ethical objections to intergenerational impartiality is the violation of consumer sovereignty given that individuals are impatient. We accommodate that concern by distinguishing intra- and inter-generational discounting in an OLG model suitable for analyzing sustainability issues....

Examination of the literature of the heroin problem in the United States Reveals that there has been scant attention paid to the type of property crime specialized in by addicts or to the marketing network of addict-stolen goods. This paper begins to remedy both neglects by focusing on...