Did Installed Base Give an Incumbent any (Measureable) Advantages in Federal Computer Procurement?
研究联邦计算机采购中在位供应商的优势，发现机构倾向于从在位者采购，但系统与买方既有装机量的兼容性也影响选择，这是首次计量衡量不兼容的竞争效应。
This research examines the relative strength and significance of the status of contractor in federal computer procurement. One finding, as expected, is that an agency is likely to acquire a system from an incumbent vendor. Another finding, perhaps more interesting, is that the (in)compatibility between a buyer's installed base and a potential system also influences the vendor choice; a result that may be the first econometric measurement of the competitive effects of incompatibility. An illustration of this thesis comes from IBM's experience. New evidence shows, however, that IBM's apparent disadvantage with government agencies is largely due to incompatibilities in IBM's product line.