TY - JOUR AU - Pindyck,Robert S. TI - Mandatory Unbundling and Irreversible Investment in Telecom Networks JF - National Bureau of Economic Research Working Paper Series VL - No. 10287 PY - 2004 Y2 - February 2004 UR - http://www.nber.org/papers/w10287 L1 - http://www.nber.org/papers/w10287.pdf N1 - Author contact info: Robert S. Pindyck MIT Sloan School of Management 100 Main Street, E62-522 Cambridge, MA 02142 Tel: 617/253-6641 Fax: 617/258-6855 E-Mail: RPINDYCK@MIT.EDU AB - This paper addresses the impact on investment incentives of the network sharing arrangements mandated by the Telecommunications Act of 1996, with a focus on the implications of irreversible investment. Although the goal is to promote competition, the sharing rules now in place reduce incentives to build new networks or upgrade existing ones. Such investments are irreversible -- they involve sunk costs. The basic framework adopted by regulators allows entrants to utilize such facilities at prices reflecting what it would cost a new, efficient, large-scale network to be built. Such sharing opportunities are extensive, covering virtually the entire suite of network services provided, and extremely flexible, as the entrant can rent facilities in small increments for short duration, with no long-term contracts required. Because the entrant does not bear the sunk costs, this leads to an asymmetric allocation of risk and return that is not properly accounted for in the pricing of network services, which creates a significant investment disincentive. ER -