This paper examines the distributional characteristics of parametric reforms carried out when a planner faces an unexpected adverse shock to the pay-as-you-go system. When transfers are used to balance the system, we show that, even if the planner chooses a Ponzi scheme in the face of permanent...

As it evolves around the world, Social Security financed on pay-as-you-go (PAYG) basis increasingly becomes a Ponzi scheme due to aging populations. The main objective of Social Security is to insure seniors against an uncertain life span. However, as the probability of being a net loser rises...