The Distributional Effects of Tax-benefit Policies under New Labour: A Shapley Decomposition

Olivier Bargain

No 200918, Working Papers from Geary Institute, University College Dublin

Abstract: Using counterfactual microsimulations, Shapley decompositions of time change in inequality and poverty indices make it possible to disentangle and quantify the relative effect of tax-benefit policy changes, compared to all other effects including shifts in the distribution of market income. Using this approach also helps to clarify the different issues underlying the distributional evaluation of policy reforms. An application to the UK (1998-2001) confirms previous findings that inequality and depth of poverty would have increased under the first New Labour government, had important reforms like the extensions of income support and tax credits not been implemented. These reforms have also contributed to substantially reduce poverty among families with children and pensioners.

Keywords: Tax-benefit policy; inequality; poverty; Shapley decomposition; microsimulation (search for similar items in EconPapers)
JEL-codes: H23 H53 I32 (search for similar items in EconPapers)
Pages: 21 pages
Date: 2009-06-10
New Economics Papers: this item is included in nep-cmp and nep-pub
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Citations: View citations in EconPapers (7)

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http://www.ucd.ie/geary/static/publications/workingpapers/gearywp200918.pdf First version, 2009 (application/pdf)

Related works:
Working Paper: The distributional effects of tax-benefit policies under New Labour: a Shapley decomposition (2009)
Working Paper: The Distributional Effects of Tax-Benefit Policies under New Labour: A Shapley Decomposition (2009)
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