TY - JOUR AU - Grossman,Gene M. AU - Helpman,Elhanan TI - Incomplete Contracts and Industrial Organization JF - National Bureau of Economic Research Working Paper Series VL - No. 7303 PY - 1999 Y2 - August 1999 UR - http://www.nber.org/papers/w7303 L1 - http://www.nber.org/papers/w7303.pdf N1 - Author contact info: Gene M. Grossman International Economics Section Department of Economics Princeton University Princeton, NJ 08544 Tel: 609/258-4823 Fax: 609/258-1374 E-Mail: grossman@princeton.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 an equilibrium model of industrial structure in which the organization of firms is endogenous. Differentiated consumer products can be produced either by vertically integrated firms or by pairs of specialized companies. Production of each variety of consumer good requires a unique, specialized component. Vertically integrated firms can manufacture the components they need in the quantity and type that maximizes profits, but they face a relatively high cost of governance. Specialized firms can produce at lower cost, but input suppliers face a potential hold-up problem. We study the equilibrium mode of organization when inputs are fully or partially specialized. We consider how the degree of competition in the market and other parameters affect the equilibrium choices, and how the equilibrium compares with the efficient allocation. ER -