Sustainable Preferences and Damage Abatement:Value Judgments and Implications for Consumption Streams

John Creedy and Ross Guest ()

No 1026, Department of Economics - Working Papers Series from The University of Melbourne

Abstract: This paper examines the implications of adopting alternative value judgements when evaluating future consumption streams in the context of damage abatement. The paper focusses on a form of ‘sustainable preferences’ designed to avoid either a dictatorship by present or by future generations which can arise when using a ‘standard’ social welfare function. Numerical examples are reported, based on a simple growth model, under alternative damage abatement parameters and welfare functions. The results illustrate how sustainable preferences effectively reduce the damages on future consumption by shifting consumption from the present to the future. This implies an intergenerational trade-off. An explicit policy of damage abatement under a standard social welfare function implies a similar intergenerational trade-off. However, the results suggest that damage abatement does not penalise current generations as much under sustainable preferences as it does under standard value judgements

Pages: 27 pages
Date: 2008
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