This paper considers an economy where individuals differ in productivity and in risk. Rochet (1991) has shown that when private insurance markets offer full coverage at fair rates, social insurance is desirable if and only if risk and productivity are negatively correlated. This condition is...

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...

The paper presents a general equilibrium model of search unemployment that incorporates absence from work as a distinct labor force state. Absenteeism is driven by random shocks to the value of leisure that are private information to the workers. Firms maximize profits while recognizing that the...

This paper analyzes the optimal response of the social insurance system to a rise in labor market risk. To this end, we develop a tractable macroeconomic model with risk-free physical capital, risky human capital (labor market risk) and unobservable effort choice affecting the distribution of...

Based on administrative data from Norway, we explore the "grey area" between the roles of unemployment- and temporary disability-insurances by examining how participation in these two program types is affected by local labor demand conditions. Local labor demand is identified by means of a...

Using longitudinal data from the date of arrival, we study long‐term labor market and social insurance outcomes for all major immigrant cohorts to Norway since 1970. Immigrants from high-income countries performed as natives, while labor migrants from low‐income source countries had...

What do labor income dynamics look like over the life-cycle? What is the relative importance of persistent shocks, transitory shocks and heterogeneous profiles? To what extent do taxes, transfers and the family attenuate these various factors in the evolution of life-cycle inequality? In this...

Immigrants from low‐income source countries tend to be underrepresented in employment and overrepresented in social insurance programs. Based on administrative data from Norway, we examine how these gaps reflect systematic differences in the impacts of social insurance benefits on work...