Did Microsoft artificial entry barriers (through its bundling and contractual practices) to remove a competitive threat to its Windows operating system or were Microsoft's actions explained by economic efficiency justifications? The paper presents an economic framework for examining this...

This paper discusses the economic issues involved in the government's case against Microsoft. In particular, we examine the competitive effects of Microsoft's contractual restrictions, including the bundling of its Internet browser with the Windows 98 operating system in agreements with computer...