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A critical review of the “ladder of investment” approach

Author

Listed:
  • Marc Bourreau

    (SES - Département Sciences Economiques et Sociales - Télécom ParisTech, ECOGE - Economie Gestion - I3 SES - Institut interdisciplinaire de l’innovation de Telecom Paris - Télécom ParisTech - I3 - Institut interdisciplinaire de l’innovation - CNRS - Centre National de la Recherche Scientifique)

  • Pinar Doğan
  • Matthieu Manant

    (RITM - Réseaux Innovation Territoires et Mondialisation - UP11 - Université Paris-Sud - Paris 11)

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 access--the "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 complements--albeit they have been traditionally viewed as substitutes--in 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.
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Suggested Citation

  • Marc Bourreau & Pinar Doğan & Matthieu Manant, 2010. "A critical review of the “ladder of investment” approach," Post-Print hal-02085300, HAL.
    • Handle: RePEc:hal:journl:hal-02085300
    DOI: 10.1016/j.telpol.2010.09.002
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