The development of the field-scale Erosion Productivity Impact Calculator (EPIC) model was initiated in 1981 to support assessments of soil erosion impacts on soil productivity for soil, climate, and cropping conditions representative of a broad spectrum of U.S. agricultural production regions....

Computer models are important tools for assessing regional carbon sequestration and other environmental impacts of agricultural management practices. The Environmental Policy Integrated Climate (EPIC) model is a very flexible model that has been used to make a wide range of field- and...

To what extent can a significant portion of the environmental benefits offered by CRP be maintained if CRP outlays are significantly reduced? Recent CARD research reported here in a succinct manner addresses the issue of economic and environmental trade-offs in CRP.

Contained in this paper are estimates of the benefits and costs of alternative soil conservation policies in a spatially and temporally consistent framework. The policies considered are implementation of soil conservation practices with an objective of reducing erosion to a site's tolerance...

The authors present an empirical model used to estimate the effects of alternative farming practices on potential nitrogen runoff and leaching in 128,591 National Resource Inventory sites across the Midwest and the Northern Plains of the United States. This model integrates the effects of soils,...

This report summarizes the major findings of a study in which an integrated agro-ecological economic modeling system was constructed around Agriculture Canada's Canadian Regional Agriculture Model (CRAM) to analyze the economic and environmental impacts of proposed agricultural policies. The...

This study tests the theory of rationing, examining changes in household consumption behavior during the transition to a market economy in Poland, 1987-92. Using pre-reform data from the Polish Household Budget Survey, Huffman and Johnson develop a model of consumption under rationing and derive...

The costs of shortages and rationing are not captured by standard consumer price indices. Thus the change in real gross domestic product (GDP) per capita is an overestimate of welfare losses in transition economies. In this study the authors use virtual prices to calculate new cost-of-living...

Strategic trade in international markets is important for agricultural and other basic commodities. State trading companies (STCs) and large private firms control most of the trade volume. In this study the authors use concepts of modern game theory to treat time inconsistency issues associated...

Policy reforms that increase the roles of markets in agriculture and related institutional changes are occurring worldwide and are accompanied by rapid technical change. With the evolving role of government, new institutions are emerging for shaping the strategic behavior of public and private...