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Sharing Demographic Risk – Who is Afraid of the Baby Bust?

Alexander Ludwig and Michael Reiter

No 8166, MEA discussion paper series from Munich Center for the Economics of Aging (MEA) at the Max Planck Institute for Social Law and Social Policy

Abstract: We model the optimal reaction of a public PAYG pension system to demographic shocks. We compare the ex-ante first best and second best solution of a Ramsey planner with full commitment to the outcome under simple third best rules that mimic the pension systems observed in the real world. The model, in particular the pension system, is calibrated to the German economy. The objective of the social planner is calibrated such that the size of the German pension system was optimal under the economic and demographic conditions of the 1960s. We find that the German system comes relatively close to the second-best solution, especially when labor market distortions are correctly modelled. Furthermore, the German system and a constant contribution rate lead to a lower variability of lifetime utility than does the second best policy. The recent baby-boom/baby-bust cycle leads to welfare losses of about 5% of lifetime consumption for some cohorts. We argue that it is crucial for these results to model correctly the labor market distortions arising from the pension system.

JEL-codes: E62 H3 H55 (search for similar items in EconPapers)
Date: 2008-10-30
New Economics Papers: this item is included in nep-age, nep-cba, nep-dge and nep-mac
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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