This Global Database contains estimates of intergenerational income mobility for 87 countries, covering 84 percent of the world’s population. Intergenerational income mobility measures the extent to which a child’s income depends on his or her parents’ income. This is achieved by processing individual data from at least 156 surveys and employing the Two-Sample Two-Stage Least Squares (TSTSLS) approach proposed by Bjorklund and Jantti (1997).