Given the prevalence of informal labor, most countries have combined contributory social insurance programs (pensions, unemployment benefits, and health insurance), with non-contributory insurance programs and several types of "safety nets." All of these programs involve different types of...

This paper solves and estimates a stochastic model of optimal inter-temporal behavior to assess how changes in the design of the unemployment benefits and pension systems in Brazil could affect savings rates, the share of time that individuals spend outside of the formal sector, and retirement...

The paper examines social security (public pension) reforms in which the programme is partially shifted from a public unfunded basis to a private, prefunded, basis. It focuses on reforms where individuals have a choice in switching from public funded to private unfunded programmes (as in the...