New technology is usually expensive and it takes time for manufacturers to make the technology more accessible. In the stereo industry, the first Super Audio Compact Disk (SACD) player made by Sony, SCD-1, sold for $5,000 in 1999; in 2002 the cheapest of Sony's new SACD players, SCD-CE775, had a...

In this paper, we study the incumbent's incentive to share its essential facility when there exist network effects. We show that without network effects, the incumbent will charge an access fee high enough to deter the entry. with network effects, however, the incumbent always has an incentive...