This paper proposes a method for the welfare analysis of pay-as-you-go social security systems. We derive a formula for the welfare consequences of a permanent marginal change in the payroll tax rate that is valid under weak assumptions about the deep structure of the economy. Our approach...

This chapter provides a review of some implications of demographic shift arising from population aging for fiscal policy, taxation policy, and social security settings. The key implications of population aging that have been forthcoming from the many national and international macroeconomic...