@article{Competition::1608, recid = {1608}, author = {Minamihashi, Naoaki}, title = {Natural Monopoly and Distorted Competition: Evidence from Unbundling Fiber-Optic Networks}, address = {2012}, pages = {1 online resource (iii, 37 pages)}, abstract = {Can regulation solve problems arising from a natural monopoly? This paper analyzes whether “unbundling,” referring to regulations that enforce sharing of natural monopolistic infrastructure, prevents entrants from building new infrastructure. It models and estimates a dynamic entry game to evaluate the effects of regulation, using a dataset for construction of fiber-optic networks in Japan. The counterfactual exercise shows that forced unbundling regulation leads to a 24% decrease in the incidence of new infrastructure builders. This suggests, therefore, that when a new technology is being diffused, regulation to remove a natural monopoly conversely involves risks that regulated monopolists’ shares will increase.}, url = {http://www.oar-rao.bank-banque-canada.ca/record/1608}, doi = {https://doi.org/10.34989/swp-2012-26}, }