TY - JOUR AU - Bryan, Gharad AU - Morten, Melanie TI - The Aggregate Productivity Effects of Internal Migration: Evidence from Indonesia JF - National Bureau of Economic Research Working Paper Series VL - No. 23540 PY - 2017 Y2 - June 2017 DO - 10.3386/w23540 UR - http://www.nber.org/papers/w23540 L1 - http://www.nber.org/papers/w23540.pdf N1 - Author contact info: Gharad T. Bryan London School of Economics Houghton Street London WC2A 2AE United Kingdom E-Mail: g.t.bryan@lse.ac.uk Melanie Morten Department of Economics Stanford University 579 Serra Mall Stanford, CA 94305 E-Mail: memorten@stanford.edu AB - We estimate the aggregate productivity gains from reducing barriers to internal labor migration in Indonesia, accounting for worker selection and spatial differences in human capital. We distinguish between movement costs, which mean workers will only move if they expect higher wages, and amenity differences, which mean some locations must pay more to attract workers. We find modest but important aggregate impacts. We estimate a 22% increase in labor productivity from removing all barriers. Reducing migration costs to the US level, a high mobility benchmark, leads to an 8% productivity boost. These figures hides substantial heterogeneity. The origin population that benefits most sees an 104% increase in average earnings from a complete barrier removal, or a 37% increase from moving to the US benchmark. ER -