In this paper we address the possibility of horizontal foreclosure in markets for complementary services (software) where the consumption value of durables (hardware) depends on the availability of software. Horizontal foreclosure occurs when a hardware firm merges with a software firm and the...

In this paper, I first estimate hedonic price equations for computer spreadsheet programs, and then use the analysis to empirically test whether network externalities exist in this industry. The study shows that consumers are willing to pay a significant premium for spreadsheets that are...

(In Israel, area cable television (CATV) licenses were auctioned sequentially. This paper empirically finds a ``morning" effect, that is, greater competition in later rounds of the auction. While three factors (interdependencies among neighboring licenses, interdependencies among all licenses,...

In this paper we develop a model with (1) differentiated consumers, (2) endogenous adoption times, (3) technical uncertainty, and (4) alternative technologies sponsored by competing vendors. We identify conditions under which orphaning arises endogenously in a framework of dynamic competition....

Abtract: This paper considers learning in an imperfectly competitive setting. By allowing an opponent a ``head start," unsuccessful unilateral experimentation may jeopardize future sales and profits. We show that even in the absence of spillover and signalling effects, competition can inhibit...