Abstract

This paper analyses the macroeconomic and welfare effects of a higher retirement age within a dynamic overlapping generations framework, wherein exponential discounting and sophisticated quasi-hyperbolic discounting agents coexist in ‘mixed economies’. The transitional dynamics of economic aggregates depend on the proportion of QHD agents, and the extent to which reducing the social security tax rate mitigates crowding-out effects on savings and enables both lower pension contributions and higher pension benefits. Welfare impacts across agent types and cohorts differ accordingly: QHD agents employ the higher retirement age as a commitment mechanism to mitigate the adverse welfare implications of present-biasedness.

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