Tax evasion is typically analyzed in a principal/agent framework,the government (principal)trying to provide agents with the incentives to pay their taxes. However,evading sales,excise or trade taxes requires the cooperation of at least two taxpayers.When individuals evade taxes,they face two...

This paper examines the properties of the optimal nonlinear income tax when preferences are quasilinear in leisure and heterogeneous. Individuals differ in their ability and in their preferences for leisure. The government seeks to redistribute income. It can perfectly observe the level of...