In order to achieve universal health coverage, the full involvement of informal-sector workers in healthinsurance schemes is necessary. In Tanzania, measures targeting informal-sector workers have been evolving over time. Earlier researchers reported low participation of such workers in the...

Seguro Popular was introduced in 2002 to provide health insurance to the 50 million Mexicans without Social Security. This paper tests whether the program has had unintended consequences, distorting workers' incentives to operate in the informal sector. The analysis examines the impact of Seguro...