Measuring Welfare Changes and the Excess Burden of Taxation* |
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Authors: | John Creedy |
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Institution: | Department of Economics, University of Melbourne |
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Abstract: | This paper examines methods used to evaluate the welfare effects of tax changes, with emphasis on the measurement problems involved. Welfare changes and excess burdens are defined, along with approximations. Aggregate measures, using a social welfare function, are examined. The special case of income taxation is then examined, leading to discussion of the marginal welfare cost of taxation and the marginal cost of funds. The measurement methods examined include the use and estimation of direct and indirect utility functions, along with the algebraic and numerical integration from estimated Marshallian demand functions to the compensated demands. The use of equivalent incomes to examine tax changes, using unit record data from household budget surveys, is then discussed. |
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