TY - JOUR AU - Acemoglu,Daron AU - Antràs,Pol AU - Helpman,Elhanan TI - Contracts and the Division of Labor JF - National Bureau of Economic Research Working Paper Series VL - No. 11356 PY - 2005 Y2 - May 2005 UR - http://www.nber.org/papers/w11356 L1 - http://www.nber.org/papers/w11356.pdf N1 - Author contact info: Daron Acemoglu Department of Economics MIT, E52-380B 50 Memorial Drive Cambridge, MA 02142-1347 Tel: 617/253-1927 Fax: 617/253-1330 E-Mail: daron@mit.edu Pol Antràs Department of Economics Harvard University 1805 Cambridge Street Littauer Center 207 Cambridge, MA 02138 Tel: 617/495-1236 Fax: 617/495-8570 E-Mail: pantras@fas.harvard.edu Elhanan Helpman Department of Economics Harvard University 1875 Cambridge Street Cambridge, MA 02138 Tel: 617-495-4690 Fax: 617-495-7730 E-Mail: ehelpman@harvard.edu AB - We develop a tractable framework for the analysis of the relationship between contractual incompleteness, technological complementarities, and technology adoption. In our model a firm chooses its technology and investment levels in contractible activities by suppliers of intermediate inputs. Suppliers then choose investments in noncontractible activities, anticipating payoffs from an ex post bargaining game. We show that greater contractual incompleteness leads to the adoption of less advanced technologies and that the impact of contractual incompleteness is more pronounced when there is greater complementary among the intermediate inputs. We study a number of applications of the main framework and show that the mechanism proposed in the paper can generate sizable productivity differences across countries with different contracting institutions and that differences in contracting institutions lead to endogenous comparative advantage differences. ER -