BARRIERS TO ENTRY: ABOLISHING THE BARRIERS TO UNDERSTANDING by Jan-Horst Keppler Professor of economics Université Paris – Dauphine, LEDa, and Université Paris I Panthéon-Sorbonne, PHARE Port.: (+33 6) 77 81 37 46; Email: jan.keppler@dauphine.fr. Abstract The concept of a barrier to entry...

The article develops R. H. Coase’s insight that the level of transaction costs in the market determines the amount of externalities, thus providing arguments against government intervention. Contrary to Coase, however, we argue that the level of transaction costs cannot be considered as given,...