The authors develop a theoretical model where two competing firms need access to basic knowledge that only one firm owns. They determine the impact of an imperfect property right on the incentive to transfer that knowledge to the competitor. They compare these transfer strategies. (i) Patenting...

In this paper I discuss the fact that economists define optimal IP rights as a continuum of options in three dimensions: height, breadth and length. At the operational level we see the impossibility of multiplying rights indefinitely (due to prohibitive transaction costs), as well as the use of...