Lambert, Peter: Progressivity Comparisons
World Conference Econometric Society, 2000, Seattle

Valentino Dardanoni, Universita di Palermo
Peter Lambert, University of York
Progressivity Comparisons
Session: C-7-5  Sunday 13 August 2000  by Lambert, Peter
Analysts should correct for distributional differences before undertaking local progressivity comparisons between income tax or tax and benefit schedules. A transplant-and- compare procedure is advocated, involving 'importation' of the schedule from one regime into another, or from both into a reference scenario. The residual progression ordering over transplanted schedules then assures a global ordering of original regimes by Lorenz or Suits curves. The algorithm applies only when transplantation functions are isoelastic, and is illustrated for the Canadian, Israeli and UK tax and benefit systems.


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