These 21 national case studies of internal migration were written especially for this unusual and useful volume. . . . The resulting blend of the general and the particular, especially when viewed across the 21 countries, will be useful to a wide range of basic and applied social scientists....

The Global Repository of Income Dynamics (GRID) is a new open-access, cross- country database that contains a wide range of micro statistics on income inequality, dynamics, and mobility. It has four key characteristics: it is built on micro panel data drawn from administrative records; it fully...