A critical review of the "ladder of investment" approach

  • Bourreau M
  • Doǧan P
  • Manant M
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Abstract

The "ladder of investment" is a regulatory approach proposed by Cave (2006), which has been widely embraced by national regulatory authorities in the European telecommunications sector. The approach entails providing entrants, successively, with different levels of accessthe "rungs" of the investment ladder, while inducing them to climb the ladder by setting an access charge that increases over time or by withdrawing access obligations after some pre-determined date (i.e., by setting sunset clauses). Proponents of the ladder of investment approach claim that such regulatory measures would make service-based entry and facility-based entry complementsalbeit they have been traditionally viewed as substitutesin promoting competition. The regulators, thus, have shown a strong interest in this approach. The paper provides a critical review of the ladder of investment approach by setting out its two underlying assumptions and discussing their validity with references to the related industrial organization literature. © 2010 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Facility-based competition
  • Ladder of investment
  • Telecommunications

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