Uncertain Incomes, Pay-as-you-go Systems, and Diversification
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Uncertain Incomes, Pay-as-you-go Systems, and Diversification
Journal of Contextual Economics – Schmollers Jahrbuch, Vol. 119 (1999), Iss. 4 : pp. 491–507
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Hauenschild, Nils
References
-
Breyer, F. (1989), On the Intergenerational Pareto Efficiency of Pay-as-you-go Financed Pension Systems, Journal of Institutional and Theoretical Economics 145, 643 - 658.
Google Scholar -
Breyer, F., Straub, M. (1993), Welfare Effects of Unfunded Pension Systems when Labour Supply is Endogenous, Journal of Public Economics 50, 77-91.
Google Scholar -
Brunner, J. K. (1994), Redistribution and the Efficiency of the Pay-as-you-go Pension System, Journal of Institutional and Theoretical Economics 150, 511-523.
Google Scholar -
Caballero, R. J. (1990), Consumption Puzzles and Precautionary Savings, Journal of Monetary Economics 25, 113-136.
Google Scholar -
Caballero, R. J. (1991), Earnings Uncertainty and Aggregate Wealth Accumulation, American Economic Review 81, 859-871.
Google Scholar -
Casarico, A. (1998), Pension Reform and Economic Performance under Imperfect Capital Markets, The Economic Journal 108, 344 - 362.
Google Scholar -
Enders, W., Lapan, H.E. (1982), Social Security Taxation and Intergenerational Risk Sharing, International Economic Review 23, 647-658.
Google Scholar -
Enders, W. (1993), A Model of First and Second-Best Social Security Programs, in: B. Felderer (ed.), Public Pension Economics, Journal of Economics, Suppl. 7, 65-90.
Google Scholar -
Fenge, R. (1995), Pareto-efficiency of the Pay-as-you-go Pension System with Intragenerational Fairness, Finanzarchiv 52, 357 - 363.
Google Scholar -
Gale, D. (1991), The Efficient Design of Public Debt, in: R. Dornbusch and M. Draghi (eds.), Public Debt Management: Theory and History, 14-51, Cambridge.
Google Scholar -
Gordon, R. H., Varian, H.R. (1988), Intergenerational Risk Sharing, Journal of Public Economics 37, 185-202.
Google Scholar -
Hauenschild, N. (1999a), Pareto-improving Transition from Pay-as-you-go to Fully Funded Social Security under Uncertain Incomes, Finanzarchiv, forthcoming.
Google Scholar -
Hauenschild, N. (1999b), Alterssicherungssysteme im Rahmen stochastischer Modelle überlappender Generationen, Frankfurt a. M. (Lang).
Google Scholar -
Homburg, S. (1990), The Efficiency of Unfunded Pension Schemes, Journal of Institutional and Theoretical Economics 146, 640 - 647.
Google Scholar -
Merton, R. S. (1983), On the Role of Social Security as a Means for Efficient Risk Sharing in an Economy where Human Capital is not Tradable, in: Z. Bodie and J. B. Shoven (eds.), Financial Aspects of the United States Pension System, 325-358, Chicago.
Google Scholar -
Peled, D. (1982), Informational Diversity over Time and the Optimality of Monetary Equilibria, Journal of Economic Theory 28, 255 - 274.
Google Scholar -
Richter, W. F. (1993), Intergenerational Risk Sharing and Social Security in an Economy with Land, in: B. Felderer (ed.), Public Pension Economics, Journal of Economics, Suppl. 7, 91-103.
Google Scholar -
Thøgersen, Ø. (1998), A Note on Intergenerational Risk Sharing and the Design of Pay-as-you-go Pension Programs, Journal of Population Economics 11, 373-378.
Google Scholar
Abstract
This paper analyzes the efficiency of pay-as-you-go pension systems in a small open economy with stochastic wages and interest rates. Applying the criterion of conditional Pareto-optimality it is shown that the introduction as well as the extension of an existing pay-as-you-go system can be Pareto-improving even though its expected rate of return is below the expected interest rate. This result is only based on efficiency grounds and not due to any intergenerational risk sharing. It follows from the fact that a pay-as-you-go system acts as a means of diversification by reducing the overall risk of individual saving portfolios.