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Title: Social Desirability of Earning Tests

Author(s): Helmuth Cremer, Jean-Marie Lozachmeur and Pierre Pestieau

Publication Date: March 2006

Keyword(s): earnings test and social security

Programme Area(s): Public Economics

Abstract: In many countries pension systems involve some form of earnings test; i.e., an individual?s benefits are reduced if he has labour income. This paper examines whether or not such earning tests emerge when pension system and income tax are optimally designed. We use a simple model with individuals differing both in productivity and their health status. The working life of an individual has two 'endings': an official retirement age at which he starts drawing pension benefits (while possibly supplementing them with some labour income) and an effective age of retirement at which professional activity is completely given up. Weekly work time is endogenous, but constant in the period before official retirement and again constant (but possibly at a different level), after official retirement. Earnings tests mean that earnings are subject to a higher tax after official retirement than before. We show under which conditions earnings tests emerge both under a linear and under a nonlinear tax scheme. In particular, we show that earning tests will occur if heterogeneities in health or productivity are more significant after official retirement than before.

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Bibliographic Reference

Cremer, H, Lozachmeur, J and Pestieau, P. 2006. 'Social Desirability of Earning Tests'. London, Centre for Economic Policy Research. https://cepr.org/active/publications/discussion_papers/dp.php?dpno=5551