his paper investigates whether a downstream monopolist has an incentive to freely share its technology to potential entrants. With a linear demand, it is more profitable for the downstream monopolist to share its obsolete technology with the potential entrants even with no returns. In this context, technology sharing is a Pareto improvement. Moreover, the profit of the downstream monopolist via technology sharing increases with the number of new entrants, but the nexus between social welfare and the number of new entrants is non-monotonic.
The BE Journal of Economic Analysis and Policy 16(3), p.1321-1336