The authors consider a transitory demographic shock that affects negatively the financing of retirement pensions-that is, workers either would have to pay more or retirees would receive less. In contrast to the existing literature, the authors endogenously determine optimal policies rather than...

The choice of the intertemporal discount rate affects the measurement of the tax burden of different age cohorts. Small changes in the discount rate affect not only the magnitude of the measured changes, but also the ranking of policies using that metric. The authors illustrate this problem in...

In January 1995, US President Bill Clinton organized a bailout for Mexico that imposed penalty interest rates and induced the Mexican government to reduce its debt, ending the debt crisis. Can the Troika (European Commission, European Central Bank, and International Monetary Fund) organize...

We argue that a privatization of the social security system, going from a Pay-As-You- Go to a Fully Funded system, can be interpreted as the explicit recognition of an implicit debt and there is no efficiency gain in doing so. As a consequence, potential efficiency gains upon reforming the...

This article reviews the characteristics of different social security systems. Many configurations arise depending on the nature of a system’s funding and determination of benefits. Many reforms propose changing the U.S. Social Security system. The authors focus their analysis of the...

We develop a model for analyzing the sovereign debt crises of 2010 and 2011 in such European countries as Greece, Ireland, and Portugal. The government sets its expenditure-debt policy optimally given a fixed probability of a recovery in fiscal revenues. In doing so, the government can optimally...

Two years after the rescue package for Greece provided by the European Union and the International Monetary Fund in May 2010, sovereign debt crises continue to threaten a growing number of countries in the eurozone. We develop a theory for analyzing these crises based on the research of Cole and...