Back to the Future - Decomposition Analysis of Distributive Policies using Behavioural Simulations
AbstractFor policy makers and analysts, it is important to isolate the redistributive im- pact of tax-benefit policy changes from changes in the environment in which policies operate. When actual reforms are motivated by work incentives, it is also crucial to evaluate behavioural responses and the distributional consequences thereof. For that purpose, we embed counterfactual simulations in a formal framework based on the Shapley value decomposition and quantify the relative roles of (i) tax-benefit policy changes (direct policy effect), (ii) labour supply responses to the policy reforms (in- direct effect) and (iii) all other factors affecting income distribution over time. An application to the UK shows that the redistributive reforms of the 1998-2001 period have offset the increase in inequality that would have occurred otherwise. They also contribute to a strong decline in child poverty and poverty amongst single parent households. In the latter group, a third of the headcount poverty reduction (and half of the reduction in the depth of poverty) is on account of the very large incentive effect of policy changes.
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Bibliographic InfoPaper provided by School Of Economics, University College Dublin in its series Working Papers with number 201032.
Length: 20 pages
Date of creation: 06 Oct 2010
Date of revision:
Tax-benefit policy; inequality; poverty; Shapley value decompo- sition; behavioural microsimulation; labour supply;
Other versions of this item:
- Bargain, Olivier, 2010. "Back to the Future: Decomposition Analysis of Distributive Policies Using Behavioural Simulations," IZA Discussion Papers 5226, Institute for the Study of Labor (IZA).
- H23 - Public Economics - - Taxation, Subsidies, and Revenue - - - Externalities; Redistributive Effects; Environmental Taxes and Subsidies
- H53 - Public Economics - - National Government Expenditures and Related Policies - - - Government Expenditures and Welfare Programs
- I32 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - Measurement and Analysis of Poverty
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