This Paper designs a political economy model of invasive species management in order to explore the effectiveness of tariffs in mitigating the risk of invasion. The revenue interests of the government together with the interests of the lobby group competing with the imported agricultural...

The MODERE, the Ministry of the Environment Irrigation Decision Model, is a simulation tool whichuses mathematical programming methods to reveal the implicit multiattribute objective function lyingbehind the observed cropping decision. The model takes different criteria such as profit...

Rapidly declining gasoline prices from their record high during the summer of 2008,while ethanol prices remained relatively high, made it difficult for many bio-fuel policymodelers to fully explain the impacts of U.S. bio-fuel policies on fuel prices. Using profit-maximizationmodels for...

Proceedings based on a talk given by Ted Helvoigt, mainly PowerPoints

The U.S. Geological Survey has determined that irrigation in Arkansas’ Delta is unsustainable. This study examines how irrigation restrictions would affect county net returns to cropproduction. It also considers the effect of planting less water-intensive bioenergycrops—switchgrass and...

We examined four evolution paths of the biofuel sector using a partial equilibrium worldagricultural sector model in CARD that includes the new RFS in the 2007 EISA, a two-wayrelationship between fossil energy and biofuel markets, and a new trend toward corn oilextraction in ethanol plants. At...

Includes cover page, journal info, contents page, and editorial information

The present paper investigates how ethnic violence and civil war in Sri Lanka have affected local property rights institutions . I use local case studies to analyze the institutional relations and alliances between civilians and combatants in the emergent society of violence that shapes local...

German wind power development is a technological success story but has involved very high subsidies. Germany was a latecomer in wind power but specific political conditions in the late 1980s and early 1990s allowed the implementation of the feed in tariff regime which has characterised Germany...