TY - JOUR AU - Rotemberg,Julio J. AU - Saloner,Garth TI - Competition and Human Capital Accumulation: A Theory of Interregional Specialization and Trade JF - National Bureau of Economic Research Working Paper Series VL - No. 3228 PY - 1990 Y2 - January 1990 UR - http://www.nber.org/papers/w3228 L1 - http://www.nber.org/papers/w3228.pdf N1 - Author contact info: Julio J. Rotemberg Graduate School of Business Harvard University, Morgan Hall Soldiers Field Boston, MA 02163 Tel: 617/495-1015 Fax: 617/496-5994 E-Mail: jrotemberg@hbs.edu Garth Saloner Graduate School of Business Stanford University Stanford, CA 94305-5015 Tel: 650/723-1940 Fax: 650/725-7692 E-Mail: saloner_garth@gsb.stanford.edu AB - We consider a model with several regions whose technological ability and factor endowments are identical and in which transport costs between regions are non-negligible. Nonetheless, certain goods are sometimes produced by multiple firms all of which are located in the same region. These goods are then exported from the regions in which their production is agglomerated. Regional agglomeration of production and trade stem from two forces. First, competition between firms for the services of trained workers is necessary for the workers to recoup the cost of acquiring industry-specific human capital. Second, the technology of production is more efficient when plants are larger than a minimum efficient scale and local demand is insufficient to support several firms of that scale. We also study the policy implications of our model. ER -