超过一半的所有工人在发展中世界re self-employed. Although some self-employment is chosen by entrepreneurs with well-defined projects and ambitions, roughly two thirds results from individuals having no better alternatives. The importance of self-employment in the overall distribution of jobs is determined by many factors, including social protection systems, labor market frictions, the business environment, and labor market institutions. However, self-employment in the developing world tends to be low productivity employment, and as countries move up the development path, the availability of wage employment grows and the mix of jobs changes.