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...

This paper studies the political economy of a basic income (BI) versus a means tested welfare scheme. We show in a very simple setting that if society votes on the type of system, its generosity as well as the "severity" of means testing (if any), a BI system could only emerge in the political...