The use of computable general equilibrium models in evaluating environmental policy

Article Abstract:

Computable general equilibrium (CGE) models are useful in the study of environmental policy and are the only models that give an accurate assessment of cost and benefits of policy changes, but need to recognize the benefits, as well as costs, of environmental regulation. The models are of different types according to their scope, the time horizon provided by them and the different policies under study. There are two types of modelling; development of sophisticated models and construction of models useful for policy analysis. The second type of models are more mathematically intractable as compared to the first.

Environmental policy

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Optimal management of environmental and land resources in a reservoir watershed by multiobjective programming

Article Abstract:

The results of an application of multiobjective linear programming (MOLP) techniques to land resource allocation of the Tweng-Wen reservoir watershed system in Taiwan shows that an increase in the residential population is environmentally feasible. MOLP techniques are applied to maintain the quality of water supply and to achieve regional development targets in such a way that soil erosion, point and nonpoint source pollution are reduced while regional income and employment levels are raised simultaneously. The models use as factors economics, employment, pollution and water quality and availability.

Taiwan, Environmental aspects, Resource allocation, Watershed management

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Reply to Huber

Article Abstract:

The authors examine a proposed means for correcting potential bias in calculating transition probabilities in land-cover and land-use research models. After presenting empirical sensitivity analysis results, the authors conclude that their regression-analysis methods avoid bias.

United States, Statistical Data Included, Research, Tests, problems and exercises, Prevention, Land use, Test bias, Probabilities, Probability theory, Markov processes, Regression analysis

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