TY - JOUR AU - Evans,David S. AU - Schmalensee,Richard TI - Some Economic Aspects of Antitrust Analysis in Dynamically Competitive Industries JF - National Bureau of Economic Research Working Paper Series VL - No. 8268 PY - 2001 Y2 - May 2001 UR - http://www.nber.org/papers/w8268 L1 - http://www.nber.org/papers/w8268.pdf N1 - Author contact info: Richard Schmalensee Sloan School of Management MIT, Room E52-410 50 Memorial Drive Cambridge, MA 02142-1347 Tel: 617/253-2957 Fax: 617/258-6617 E-Mail: rschmal@mit.edu AB - Competition in many important industries centers on investment in intellectual property. Firms engage in dynamic, Schumpeterian competition for the market, through sequential winner-take-all races to produce drastic innovations, rather than through static price/output competition in the market. Sound antitrust economic analysis of such industries requires explicit consideration of dynamic competition. Most leading firms in these dynamically competitive industries have considerable short-run market power, for instance, but ignoring their vulnerability to drastic innovation may yield misleading conclusions. Similarly, conventional tests for predation cannot discriminate between practices that increase or decrease consumer welfare in winner-take-all industries. Finally, innovation in dynamically competitive industries often involves enhancing feature sets; there is no sound economic basis for treating such enhancements as per se illegal ties. ER -