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In wholesale interconnection, two different payment systems exist: the calling party's network pays (CPNP) system and the bill and keep (BaK) system. The two systems appear to have importantly different implications. BaK has been argued to stimulate competition between operators, resulting in lower consumer prices. This, in turn, would reduce the burden of regulatory agencies to monitor the markets for telephony and other data traffic. On the other hand, there is indication that CPNP creates more incentives to invest in maintaining and extending networks. In this ENCORE workshop, various aspects of the two alternative payment systems are introduced and discussed by prominent contributors to the international debate.

Detail Summary
Date 22 April 2008
Time 14:00 - 17:30



 Introduction by Stein Smeets (Dialogic), chair
 14.25-15.05  Carlo Cambini (Politecnico Turin) - 'Some Economics of Call Termination'
 15.05-15.45 Stephen Littlechild (Cambridge University) - 'Alternative Approaches to Mobile Termination Charges: An Empirical Assessment'
 15.45-16.15 Coffee break

Scott Marcus (WIK-Consult) - ‘Interconnection:
Fixed, Mobile, Internet and NGN'

 17.00-17.30 Discussion with the floor


No fee will be charged. Please note however that we can only admit a limited number of participants, so early registration is advised. For registration, please click below.

Speaker biographies

Carlo Cambini is Professor of Industrial Organization at the Politecnico in Turin (Italy). His research interests lie in the field of industrial economics with a special focus on competition policy and regulation in telecommunications. He has published in several leading economic journals, such as the RAND Journal of Economics, Journal of Industrial Economics, Economic Letters, Information Economics & Policy, Communication & Strategies and he is the author of two books in Italian on the economics of telecommunications, currently used for their internal training by the Italian National Regulatory Authority's members. Prof. Cambini has a PhD in Public Economic from the Sant'Anna School for Advanced Studies (Pisa, Italy). He has advised several major companies and public bodies on issues related to the electronic communications markets.

Stephen Littlechild is a Principal Research Fellow at the Judge Institute of Management at the University of Cambridge. Since 1999, he has been an international consultant on privatization and regulation and competition, especially in the electricity and telecommunications sectors. Before coming to Cambridge, he was UK Director General of Electricity Supply from 1989-1998. He was previously professor of Commerce at the University of Birmingham and is an Honorary Professor at the Business School there. He received his B.Com. from the University of Birmingham and his Ph.D. from the University of Texas at Austin. He has published widely in regulation economics and other areas, including the proposal for RPI-X regulation in 1983.

J. Scott Marcus manages the "NGN and Internet Economics" department for WIK-Consult GmbH (the consulting arm of the WIK, a research institute in economics and regulatory policy for network industries, located in Bad Honnef, Germany). Previously, he served as Senior Advisor for Internet Technology for the FCC. Prior to that, he was the Chief Technology Officer (CTO) of Genuity, Inc. (GTE Internetworking). Scott has led studies on various aspects of interconnection in an increasingly IP-based world for the European Commission, the International Telecommunications Union (ITU), and the German Federal Network Agency (BNetzA).


De Koninklijke Schouwburg, Korte Voorhout 3, Den Haag