Most countries implement social protection programs to help individuals manage risks such as unemployment, disability, illness, longevity or death. In many middle income countries, these are often based on a 'Bismarckian model' (named after Otto von Bismarck), where benefits are financed by contributions levied on salaried employment. In countries with a large informal sector, however, only a fraction of the population is covered by this system and non-contributory programs have been added or are planned to increase coverage. This can create distortions in the labor market, and the book is...