Back to the future - decomposition analysis of distributive policies using behavioural simulations

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Title: Back to the future - decomposition analysis of distributive policies using behavioural simulations
Authors: Bargain, Olivier
Permanent link: http://hdl.handle.net/10197/2666
Date: Oct-2010
Abstract: For policy makers and analysts, it is important to isolate the redistributive impact 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.
Funding Details: Not applicable
Type of material: Working Paper
Publisher: University College Dublin. School of Economics
Keywords: Tax-benefi…t policyInequalityPovertyShapley value decompositionLabour supplyBehavioural microsimulation
Subject LCSH: Fiscal policy
Income distribution
Decomposition (Mathematics)
Labor supply
Other versions: http://www.ucd.ie/t4cms/wp10_32.pdf
Language: en
Status of Item: Not peer reviewed
Appears in Collections:Economics Working Papers & Policy Papers

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