Tommaso M. Valletti

Imperial College Business School

Professor of Economics

South Kensington Campus

Exhibition Road

London SW7 2AZ, SW7 2AZ

United Kingdom

Centre for Economic Policy Research (CEPR)

Fellow

London

United Kingdom

  • Imperial College Business School

SCHOLARLY PAPERS

61

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274

Scholarly Papers (61)

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1.

Horizontal Mergers and Product Innovation

Number of pages: 20 Posted: 19 Jul 2017 Last Revised: 28 Mar 2018
Giulio Federico, Gregor Langus and Tommaso M. Valletti
Chief Economist Team, DG Competition, European Commission, European Commission, Chief Economist Team and Imperial College Business School
Downloads 825 (28,189)
Citation 10

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Mergers, innovation, efficiencies

2.

The Theory of Access Pricing: An Overview for Infrastructure Regulators

World Bank Policy Research Working Paper No. 2097
Number of pages: 35 Posted: 20 Apr 2016
Tommaso M. Valletti and Antonio Estache
Imperial College Business School and Université Libre de Bruxelles (ULB) - European Center for Advanced Research in Economics and Statistics (ECARES)
Downloads 652 (38,660)
Citation 2

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3.

Net Neutrality with Competing Internet Platforms

Downloads 640 ( 39,681)
Citation 25

Net Neutrality with Competing Internet Platforms

Number of pages: 35 Posted: 20 May 2012
Marc Bourreau, Frago Kourandi and Tommaso M. Valletti
Telecom ParisTech, Athens University of Economics and Business - Department of Economics and Imperial College Business School
Downloads 348 (83,787)
Citation 5

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net neutrality, two-sided markets, platform competition, investment, innovation

Net Neutrality with Competing Internet Platforms

CEIS Working Paper No. 307
Number of pages: 46 Posted: 15 Feb 2014 Last Revised: 12 Mar 2015
Marc Bourreau, Frago Kourandi and Tommaso M. Valletti
Telecom ParisTech, Athens University of Economics and Business - Department of Economics and Imperial College Business School
Downloads 287 (103,843)
Citation 8

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Net neutrality; Two-sided markets; Platform competition; Investment; Innovation.

Net Neutrality with Competing Internet Platforms

CEPR Discussion Paper No. DP9827
Number of pages: 46 Posted: 02 Jun 2014
Marc Bourreau, Frago Kourandi and Tommaso M. Valletti
Telecom ParisTech, Athens University of Economics and Business - Department of Economics and Imperial College Business School
Downloads 3 (649,306)
Citation 4
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Innovation, Investment, Net neutrality, Platform competition, Two-sided markets

Net Neutrality with Competing Internet Platforms

The Journal of Industrial Economics, Vol. 63, Issue 1, pp. 30-73, 2015
Number of pages: 44 Posted: 31 Mar 2015
Marc Bourreau, Frago Kourandi and Tommaso M. Valletti
Telecom ParisTech, Athens University of Economics and Business - Department of Economics and Imperial College Business School
Downloads 2 (660,561)
Citation 13
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4.

Attention Oligopoly

Number of pages: 38 Posted: 21 Jun 2018 Last Revised: 02 Jun 2019
Andrea Prat and Tommaso M. Valletti
Columbia Business School - Finance and Economics and Imperial College Business School
Downloads 615 (41,849)
Citation 3

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media mergers, attention oligopoly

5.

Testing the 'Waterbed' Effect in Mobile Telephony

Downloads 464 ( 60,002)
Citation 27

Testing the 'Waterbed' Effect in Mobile Telephony

CEIS Working Paper No. 110
Number of pages: 55 Posted: 03 Apr 2008
Christos Genakos and Tommaso M. Valletti
Cambridge University and Imperial College Business School
Downloads 457 (60,487)
Citation 2

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Testing the 'Waterbed' Effect in Mobile Telephony

CEPR Discussion Paper No. DP7611
Number of pages: 68 Posted: 11 Jan 2010
Christos Genakos and Tommaso M. Valletti
Cambridge University and Imperial College Business School
Downloads 7 (618,704)
Citation 48
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regulation, telephony, termination rates

6.

The Interplay between Regulation and Competition: The Case of Universal Service Obligations

CESifo Working Paper Series No. 682
Number of pages: 20 Posted: 13 May 2002
Steffen Hoernig and Tommaso M. Valletti
Nova School of Business and Economics and Imperial College Business School
Downloads 451 (62,141)
Citation 1

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Universal Service Obligations, Regulation, Competition

7.

Buyer Power and the 'Waterbed Effect'

CEIS Research Paper No. 107
Number of pages: 27 Posted: 31 Mar 2008 Last Revised: 21 Feb 2014
Roman Inderst and Tommaso M. Valletti
Goethe University Frankfurt and Imperial College Business School
Downloads 406 (70,609)
Citation 2

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buyer power, retail concentration

8.

Price Discrimination and Price Dispersion in a Duopoly

FEEM Working Paper ETA 33.98
Number of pages: 39 Posted: 06 Nov 1998
Tommaso M. Valletti
Imperial College Business School
Downloads 395 (72,845)

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9.

Investments and Network Competition

Downloads 356 ( 82,215)
Citation 41

Investments and Network Competition

Number of pages: 38 Posted: 04 Jun 2003
Tommaso M. Valletti and Carlo Cambini
Imperial College Business School and Politecnico di Torino & EUI - Florence School of Regulation
Downloads 325 (90,597)
Citation 53

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Telecommunications, Interconnection, Two-way Access Charges, Investment, Quality

Investments and Network Competition

CEPR Discussion Paper No. 3829
Number of pages: 37 Posted: 13 May 2003
Carlo Cambini and Tommaso M. Valletti
Politecnico di Torino & EUI - Florence School of Regulation and Imperial College Business School
Downloads 31 (468,192)
Citation 1
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Telecommunication, interconnection, two-way access charges, investment quality

10.

Telecommunication Reforms, Access Regulation, and Internet Adoption in Latin America

World Bank Policy Research Working Paper No. 2802
Number of pages: 44 Posted: 20 Apr 2016
Antonio Estache, Marco Manacorda and Tommaso M. Valletti
Université Libre de Bruxelles (ULB) - European Center for Advanced Research in Economics and Statistics (ECARES), London School of Economics & Political Science (LSE) - Centre for Economic Performance (CEP) and Imperial College Business School
Downloads 344 (85,582)
Citation 12

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11.

Active and Passive Waste in Government Spending: Evidence from a Policy Experiment

CEIS Working Paper No. 115
Number of pages: 61 Posted: 08 Apr 2008
Oriana Bandiera, Andrea Prat and Tommaso M. Valletti
London School of Economics & Political Science (LSE) - Suntory and Toyota International Centres for Economics and Related Disciplines (STICERD), Columbia Business School - Finance and Economics and Imperial College Business School
Downloads 324 (91,479)
Citation 3

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12.

Mobile Call Termination: A Tale of Two-Sided Markets

Communications & Strategies, No. 61, First Quarter 2006
Number of pages: 17 Posted: 11 Apr 2007
Tommaso M. Valletti
Imperial College Business School
Downloads 318 (93,382)
Citation 2

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mobile telephony, market definition and call termination

13.

Europe, Middle East, and North Africa (Emn) Region Population Projections: 1989-90 Edition

World Bank Policy Research Working Paper No. 328
Number of pages: 260 Posted: 20 Apr 2016
Tommaso M. Valletti, Rodolfo Andres Bulatao and Patience W. Stephens
Imperial College Business School, affiliation not provided to SSRN and affiliation not provided to SSRN
Downloads 317 (93,703)

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Health Information & Communications Technologies, Demographics, Health Indicators, Health Monitoring & Evaluation

14.

Parallel Trade, International Exhaustion and Intellectual Property Rights: A Welfare Analysis

Downloads 314 ( 94,674)
Citation 25

Parallel Trade, International Exhaustion and Intellectual Property Rights: A Welfare Analysis

Journal of Industrial Economics, Forthcoming
Number of pages: 32 Posted: 03 Oct 2006
Tommaso M. Valletti and Stefan Szymanski
Imperial College Business School and Imperial College London - Imperial College of Science, Technology and Medicine
Downloads 269 (111,252)

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Parallel trade, price discrimination, investments

Parallel Trade, International Exhaustion and Intellectual Property Rights: A Welfare Analysis

Journal of Industrial Economics, Vol. 54, No. 4, pp. 499-526, December 2006
Number of pages: 28 Posted: 15 Dec 2006
Tommaso M. Valletti and Stefan Szymanski
Imperial College Business School and Imperial College London - Imperial College of Science, Technology and Medicine
Downloads 23 (513,472)
Citation 24
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Parallel Trade, International Exhaustion and Intellectual Property Rights: A Welfare Analysis

CEPR Discussion Paper No. 5022
Number of pages: 36 Posted: 24 Aug 2005
Stefan Szymanski and Tommaso M. Valletti
Imperial College London - Imperial College of Science, Technology and Medicine and Imperial College Business School
Downloads 22 (519,770)
Citation 3
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Parallel trade, price discrimination, investments

15.

A Simple Model of Mergers and Innovation

CESifo Working Paper Series No. 6539
Number of pages: 15 Posted: 21 Jul 2017
Giulio Federico, Gregor Langus and Tommaso M. Valletti
Chief Economist Team, DG Competition, European Commission, European Commission, Chief Economist Team and Imperial College Business School
Downloads 308 (96,702)
Citation 13

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innovation, R&D, mergers

16.

Statement by European Academics on the Inappropriateness of Imposing Increased Internet Regulation in the EU

Number of pages: 3 Posted: 19 Jan 2009
Martin E. Cave, N.A.N.M. van Eijk, Luigi Prosperetti, Richard Collins, Alexandre de Streel, Pierre Larouche and Tommaso M. Valletti
University of Warwick - Warwick Business School, Institute for Information Law (IViR), Law School - University of Milan, The Open University, University of Namur, Université de Montréal and Imperial College Business School
Downloads 305 (97,711)
Citation 3

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17.

Two-Part Access Pricing and Imperfect Competition

Downloads 289 (103,611)
Citation 3

Two-Part Access Pricing and Imperfect Competition

FEEM Working Paper ETA 34.98
Number of pages: 25 Posted: 06 Nov 1998
Tommaso M. Valletti
Imperial College Business School
Downloads 289 (103,068)
Citation 3

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Two-Part Access Pricing and Imperfect Competition

Information Economics & Policy, Vol. 10, 1998
Posted: 03 Dec 1998
Tommaso M. Valletti
Imperial College Business School

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18.

Price Discrimination in Input Markets

Number of pages: 43 Posted: 21 Mar 2006
Roman Inderst and Tommaso M. Valletti
Goethe University Frankfurt and Imperial College Business School
Downloads 254 (118,726)
Citation 37

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Price Discrimination, Uniform Pricing, Input Market

19.

The Value of Personal Information in Markets with Endogenous Privacy

CEIS Working Paper No. 352
Number of pages: 40 Posted: 07 Aug 2015
Rodrigo Montes, Wilfried Sand‐Zantman and Tommaso M. Valletti
University of Toulouse 1 - Toulouse School of Economics (TSE), University of Toulouse 1 - Toulouse School of Economics (TSE) and Imperial College Business School
Downloads 215 (140,017)
Citation 4

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20.

Consumer Profiling with Data Requirements

Number of pages: 51 Posted: 09 Apr 2016 Last Revised: 15 Jun 2019
Tommaso M. Valletti and Jiahua Wu
Imperial College Business School and Imperial College Business School
Downloads 205 (146,426)

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profiling, privacy, price discrimination, signal accuracy, big data

21.

Should Profit Margins Play a More Decisive Role in Merger Control? - A Rejoinder to Jorge Padilla

Journal of European Competition Law & Practice, Vol. 9, No. 5, pp. 336-342, 2018
Number of pages: 14 Posted: 29 Apr 2018 Last Revised: 01 Jun 2018
Tommaso M. Valletti and Hans Zenger
Imperial College Business School and European Union - Directorate General for Competition
Downloads 198 (151,238)

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Merger Control, Margins, Competitive Effects

22.

Recent Developments at DG Competition: 2017/2018

Review of Industrial Organization, Vol. 53, No. 4, pp. 653-679, 2018
Number of pages: 27 Posted: 14 Nov 2018 Last Revised: 27 Nov 2018
Andrea Amelio, Thomas Buettner, Cyril Hariton, Gabor Koltay, Penelope Papandropoulos, Geza Sapi, Tommaso M. Valletti and Hans Zenger
European Union - Directorate General for Competition, Independent, Toulouse Business School, European Union - Directorate General for Competition, European Union - Directorate General for Competition, European Commission, DG Competition, Chief Economist's Team, Imperial College Business School and European Union - Directorate General for Competition
Downloads 191 (156,363)

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Competition Policy, Antitrust, Mergers, State Aid, Counterfactual, Google, Price Discrimination

23.

Internet and Politics: Evidence from U.K. Local Elections and Local Government Policies

Downloads 189 (157,870)
Citation 10

Internet and Politics: Evidence from U.K. Local Elections and Local Government Policies

Number of pages: 52 Posted: 08 Dec 2015 Last Revised: 20 Feb 2018
Alessandro Gavazza, Mattia Nardotto and Tommaso M. Valletti
London School of Economics & Political Science (LSE) - Department of Economics, University of Cologne - Department of Economics and Imperial College Business School
Downloads 188 (158,591)
Citation 11

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Voting, Media, Internet

Internet and Politics: Evidence from U.K. Local Elections and Local Government Policies

CEPR Discussion Paper No. DP10991
Number of pages: 54 Posted: 20 Sep 2017 Last Revised: 05 Mar 2018
Alessandro Gavazza, Mattia Nardotto and Tommaso M. Valletti
London School of Economics & Political Science (LSE) - Department of Economics, University of Cologne - Department of Economics and Imperial College Business School
Downloads 1 (675,099)
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media, voting

24.

Net Neutrality, Exclusivity Contracts and Internet Fragmentation

Information Systems Research, Forthcoming
Number of pages: 93 Posted: 21 Dec 2014
Frago Kourandi, Jan Kraemer and Tommaso M. Valletti
Athens University of Economics and Business - Department of Economics, University of Passau and Imperial College Business School
Downloads 185 (160,937)
Citation 11

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Net neutrality; Internet fragmentation; Exclusivity

25.

Network Competition and Entry Deterrence

Downloads 184 (161,765)
Citation 24

Network Competition and Entry Deterrence

Number of pages: 23 Posted: 03 Oct 2006
Joan Calzada and Tommaso M. Valletti
University of Barcelona - Department of Political Economics and Imperial College Business School
Downloads 158 (185,066)
Citation 11

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Telecommunications, Interconnection, Entry deterrence

Network Competition and Entry Deterrence

CEPR Discussion Paper No. 5381
Number of pages: 25 Posted: 22 Feb 2006
Tommaso M. Valletti and Joan Calzada
Imperial College Business School and University of Barcelona - Department of Political Economics
Downloads 24 (507,344)
Citation 24
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Telecommunications, interconnection, entry deterrence

Network Competition and Entry Deterrence

The Economic Journal, Vol. 118, Issue 531, pp. 1223-1244, August 2008
Number of pages: 22 Posted: 15 Aug 2008
Joan Calzada and Tommaso M. Valletti
University of Barcelona - Department of Political Economics and Imperial College Business School
Downloads 2 (660,561)
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26.

Increasing Market Power and Merger Control

Competition Law & Policy Debate, Vol. 5, No. 1, pp. 26-35, 2019
Number of pages: 16 Posted: 14 Jun 2019 Last Revised: 16 Jun 2019
Tommaso M. Valletti and Hans Zenger
Imperial College Business School and European Union - Directorate General for Competition
Downloads 179 (166,671)

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increasing market power, merger control, potential competition

27.

Firm Size Distribution: Testing the 'Independent Submarkets Model' in the Italian Motor Insurance Industry

Downloads 161 (181,804)
Citation 3

Firm Size Distribution: Testing the 'Independent Submarkets Model' in the Italian Motor Insurance Industry

STICERD, London School of Economics Discussion Paper Series, EI/24
Number of pages: 36 Posted: 05 Sep 2000
Tommaso M. Valletti and Luigi Buzzacchi
Imperial College Business School and Polytechnic University of Turin
Downloads 145 (198,961)

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Size distribution of firms, Independent submarkets, Insurance companies, Price dispersion

Firm Size Distribution: Testing the 'Independent Submarkets Model' in the Italian Motor Insurance Industry

CEPR Discussion Paper No. 3444
Number of pages: 39 Posted: 03 Sep 2002
Luigi Buzzacchi and Tommaso M. Valletti
Polytechnic University of Turin and Imperial College Business School
Downloads 16 (558,069)
Citation 4
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Size distribution of firms, independent submarkets, insurance companies, price dispersion

28.

Market Structure, Countervailing Power and Price Discrimination: The Case of Airports

Downloads 158 (184,799)
Citation 1

Market Structure, Countervailing Power and Price Discrimination: The Case of Airports

CEIS Working Paper No. 177
Number of pages: 34 Posted: 10 Dec 2010
Jonathan Haskel, Alberto Iozzi and Tommaso M. Valletti
Imperial College Business School, Universita degli Studi di Roma and Imperial College Business School
Downloads 155 (188,084)

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Airports, Airlines, Landing Fees, Countervailing Power

Market Structure, Countervailing Power and Price Discrimination: The Case of Airports

CEPR Discussion Paper No. DP8280
Number of pages: 33 Posted: 14 Mar 2011
Jonathan Haskel, Alberto Iozzi and Tommaso M. Valletti
Imperial College Business School, Universita degli Studi di Roma and Imperial College Business School
Downloads 3 (649,306)
Citation 2
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Airlines, Airports, Countervailing power, Landing fees

29.

Differential Pricing, Parallel Trade, and the Incentive to Invest

Journal of International Economics, Vol. 70, 2006
Number of pages: 16 Posted: 03 Oct 2006
Tommaso M. Valletti
Imperial College Business School
Downloads 147 (196,201)
Citation 15

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price discrimination, parallel trade, investment

30.

Vertical Bargaining and Countervailing Power

CEIS Working Paper No. 160
Number of pages: 27 Posted: 03 Mar 2010 Last Revised: 25 Feb 2014
Alberto Iozzi and Tommaso M. Valletti
Universita degli Studi di Roma and Imperial College Business School
Downloads 144 (199,522)
Citation 17

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Countervailing buyer power, Nash bargaining

31.

Platform Pricing and Consumer Foresight: The Case of Airports

Downloads 141 (202,924)
Citation 5

Platform Pricing and Consumer Foresight: The Case of Airports

CEIS Working Paper No. 335
Number of pages: 35 Posted: 27 Mar 2015
Ricardo Flores-Fillol, Alberto Iozzi and Tommaso M. Valletti
Universitat Rovira i Virgili (URV), Universita degli Studi di Roma and Imperial College Business School
Downloads 141 (203,468)
Citation 6

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two-sided markets, platform pricing, one-way demand complementarity, consumer foresight.

Platform Pricing and Consumer Foresight: The Case of Airports

Journal of Economics & Management Strategy, Vol. 27, Issue 4, pp. 705-725, 2018
Number of pages: 21 Posted: 29 Oct 2018
Ricardo Flores-Fillol, Alberto Iozzi and Tommaso M. Valletti
Universitat Rovira i Virgili (URV), Universita degli Studi di Roma and Imperial College Business School
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32.

Unbundling the Incumbent: Evidence from UK Broadband

CEIS Working Paper No. 331
Number of pages: 40 Posted: 05 Oct 2014 Last Revised: 21 Mar 2015
Mattia Nardotto, Tommaso M. Valletti and Frank Verboven
University of Cologne - Department of Economics, Imperial College Business School and KU Leuven - Faculty of Business and Economics (FEB)
Downloads 139 (205,313)
Citation 34

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regulation, competition, entry, telecommunications, broadband, local loop unbundling

33.

Competition in Communication Networks: Pricing and Regulation

Oxford Review of Economic Policy, Vol. 17, No. 3, 2001
Number of pages: 42 Posted: 06 Oct 2003
Robin A. Mason and Tommaso M. Valletti
University of Southampton - Division of Economics and Imperial College Business School
Downloads 135 (210,147)
Citation 4

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34.

Evaluating Market Consolidation in Mobile Communications

Downloads 124 (224,503)
Citation 5

Evaluating Market Consolidation in Mobile Communications

CESifo Working Paper Series No. 6509
Number of pages: 72 Posted: 26 Jun 2017
Christos Genakos, Tommaso M. Valletti and Frank Verboven
Cambridge University, Imperial College Business School and KU Leuven
Downloads 121 (229,670)
Citation 7

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Mobile Telecommunications, Market Structure, Prices, Investments, Mergers

Evaluating Market Consolidation in Mobile Communications

CEPR Discussion Paper No. DP12054
Number of pages: 73 Posted: 22 May 2017
Christos Genakos, Tommaso M. Valletti and Frank Verboven
Cambridge University, Imperial College Business School and KU Leuven
Downloads 3 (649,306)
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Investments, market structure, mergers, Mobile telecommunications, prices

35.

Intertemporal Movie Distribution: Versioning When Customers Can Buy Both Versions

Downloads 112 (241,937)
Citation 7

Intertemporal Movie Distribution: Versioning When Customers Can Buy Both Versions

CEIS Working Paper No. 198
Number of pages: 44 Posted: 28 Jun 2011
Joan Calzada and Tommaso M. Valletti
University of Barcelona - Department of Political Economics and Imperial College Business School
Downloads 108 (249,642)

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Product segmentation, versioning, sequential introduction, distribution channels, movie industry, information goods

Intertemporal Movie Distribution: Versioning When Customers can Buy Both Versions

CEPR Discussion Paper No. DP8279
Number of pages: 45 Posted: 14 Mar 2011
Joan Calzada and Tommaso M. Valletti
University of Barcelona - Department of Political Economics and Imperial College Business School
Downloads 4 (640,525)
Citation 9
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Distribution channels, Information goods, Movie industry, Product segmentation, Sequential release, Versioning

Intertemporal Movie Distribution: Versioning When Customers Can Buy Both Versions

Marketing Science, Forthcoming
Posted: 09 Mar 2012
Joan Calzada and Tommaso M. Valletti
University of Barcelona - Department of Political Economics and Imperial College Business School

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Product segmentation, versioning, sequencing, distribution channels, movie industry, information goods

Intertemporal Movie Distribution: Versioning When Customers Can Buy Both Versions

Marketing Science, Vol. 31, No. 4, pp. 649-667, 2012, DOI: 10.1287/mksc.1120.0716
Posted: 23 Oct 2012
Joan Calzada and Tommaso M. Valletti
University of Barcelona - Department of Political Economics and Imperial College Business School

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product segmentation, versioning, sequencing, distribution channels, movie industry, information goods

36.

Speed 2.0: Evaluating Access to Universal Digital Highways

Downloads 100 (261,741)
Citation 6

Speed 2.0: Evaluating Access to Universal Digital Highways

CEIS Working Paper No. 328
Number of pages: 50 Posted: 07 Sep 2014
Gabriel M. Ahlfeldt, Pantelis Koutroumpis and Tommaso M. Valletti
London School of Economics & Political Science (LSE) - Department of Geography and Environment, Imperial College Business School and Imperial College Business School
Downloads 55 (372,924)
Citation 9

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Internet, property prices, capitalization, digital speed, universal access to broadband

Speed 2.0 - Evaluating Access to Universal Digital Highways

CESifo Working Paper Series No. 5186
Number of pages: 49 Posted: 05 Feb 2015
Gabriel M. Ahlfeldt, Pantelis Koutroumpis and Tommaso M. Valletti
London School of Economics & Political Science (LSE) - Department of Geography and Environment, Imperial College Business School and Imperial College Business School
Downloads 44 (411,781)

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internet, property prices, capitalization, digital speed, universal access to broadband

Speed 2.0 - Evaluating Access to Universal Digital Highways

CEPR Discussion Paper No. DP11046
Number of pages: 62 Posted: 20 Jan 2016
Gabriel M. Ahlfeldt, Pantelis Koutroumpis and Tommaso M. Valletti
London School of Economics & Political Science (LSE) - Department of Geography and Environment, Imperial College Business School and Imperial College Business School
Downloads 1 (675,099)
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capitalization, digital speed, Internet, property prices, universal access to broadband

37.

Seesaw in the Air: Interconnection Regulation and the Structure of Mobile Tariffs

Number of pages: 30 Posted: 05 Oct 2010
Christos Genakos and Tommaso M. Valletti
Cambridge University and Imperial College Business School
Downloads 98 (265,285)
Citation 4

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Interconnection, Network Competition, Regulation, Mobile Phones

38.

Reassessing Competition Concerns in Electronic Communications Markets

ZEW - Centre for European Economic Research Discussion Paper No. 14-101
Number of pages: 30 Posted: 15 Dec 2014
Martin Peitz and Tommaso M. Valletti
University of Mannheim - Department of Economics and Imperial College Business School
Downloads 97 (267,049)
Citation 3

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Telecommunications, OTT, relevant market, two-sided markets, market power

39.

Calling Circles: Network Competition with Non-Uniform Calling Patterns

Downloads 83 (294,627)
Citation 13

Calling Circles: Network Competition with Non-Uniform Calling Patterns

CEIS Working Paper No. 206
Number of pages: 38 Posted: 18 Jul 2011
Steffen Hoernig, Roman Inderst and Tommaso M. Valletti
Nova School of Business and Economics, Goethe University Frankfurt and Imperial College Business School
Downloads 79 (306,387)
Citation 10

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Network competition, non-uniform calling patterns, termination charge

Calling Circles: Network Competition with Non-Uniform Calling Patterns

CEPR Discussion Paper No. DP8114
Number of pages: 32 Posted: 29 Nov 2010
Steffen Hoernig, Roman Inderst and Tommaso M. Valletti
Nova School of Business and Economics, Goethe University Frankfurt and Imperial College Business School
Downloads 4 (640,525)
Citation 9
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Network competition, Non-uniform calling patterns, Termination charges

40.

Evaluating a Decade of Mobile Termination Rate Regulation

Downloads 79 (303,443)
Citation 13

Evaluating a Decade of Mobile Termination Rate Regulation

CEIS Working Paper No. 303
Number of pages: 30 Posted: 11 Jan 2014 Last Revised: 17 Feb 2015
Christos Genakos and Tommaso M. Valletti
Cambridge Judge Business School and Imperial College Business School
Downloads 79 (306,387)
Citation 2

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Evaluating a Decade of Mobile Termination Rate Regulation

Feature Issue, Vol. 125, Issue 586, pp. F31-F48, 2015
Number of pages: 18 Posted: 20 Aug 2015
Christos Genakos and Tommaso M. Valletti
Cambridge Judge Business School and Imperial College Business School
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Citation 11
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41.

Mixing Goods with Two-Part Tariffs

Number of pages: 24 Posted: 03 Oct 2006
Steffen Hoernig and Tommaso M. Valletti
Nova School of Business and Economics and Imperial College Business School
Downloads 62 (346,363)
Citation 2

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Two-part tariffs, flat fees, combinable products, pay-per-view

42.

Content and Advertising in the Media: Pay-Tv Versus Free-to-Air

CEPR Discussion Paper No. 4771
Number of pages: 36 Posted: 15 Feb 2005
Martin Peitz and Tommaso M. Valletti
University of Mannheim - Department of Economics and Imperial College Business School
Downloads 35 (439,118)
Citation 71
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Advertising, media, product differentiation, two-sided markets

43.

Internet and Politics: Evidence from U.K. Local Elections and Local Government Policies

Downloads 33 (447,459)
Citation 1

Internet and Politics: Evidence from U.K. Local Elections and Local Government Policies

DIW Berlin Discussion Paper No. 1691
Number of pages: 52 Posted: 20 Oct 2017
Alessandro Gavazza, Mattia Nardotto and Tommaso M. Valletti
London School of Economics & Political Science (LSE) - London School of Economics, University of Cologne - Department of Economics and Imperial College Business School
Downloads 19 (538,878)
Citation 1

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Internet, newspaper, media, elections, policy

Internet and Politics: Evidence from U.K. Local Elections and Local Government Policies

CESifo Working Paper Series No. 6659
Number of pages: 52 Posted: 24 Oct 2017
Alessandro Gavazza, Mattia Nardotto and Tommaso M. Valletti
London School of Economics & Political Science (LSE) - London School of Economics, University of Cologne - Department of Economics and Imperial College Business School
Downloads 14 (571,309)

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44.

Regulating Prices in Two-Sided Markets: The Waterbed Experience in Mobile Telephony

Telecommunications Policy (2012, Vol. 36, Issue 5, pp. 360-368)
Number of pages: 19 Posted: 19 Jan 2016
Christos Genakos and Tommaso M. Valletti
Cambridge Judge Business School and Imperial College Business School
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Citation 4

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Mobile telephony, two-sided markets, termination rates, waterbed effect

45.

Mixing Media with Two-Part Tariffs

CEPR Discussion Paper No. 5437
Number of pages: 21 Posted: 17 Apr 2006
Tommaso M. Valletti and Steffen Hoernig
Imperial College Business School and Nova School of Business and Economics
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Two-part tariffs, pay-per-view, flat fees, combinable products

46.

Information Exchange and Competition in Communications Networks

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Citation 8

Information Exchange and Competition in Communications Networks

CEPR Discussion Paper No. 5031
Number of pages: 45 Posted: 12 Sep 2005
Carlo Cambini and Tommaso M. Valletti
Politecnico di Torino & EUI - Florence School of Regulation and Imperial College Business School
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Citation 14
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Interconnection, access charges, reception charges, bill-and-keep, information exchange

Information Exchange and Competition in Communications Networks

The Journal of Industrial Economics, Vol. 56, Issue 4, pp. 707-728, December 2008
Number of pages: 22 Posted: 02 Jan 2009
Carlo Cambini and Tommaso M. Valletti
Politecnico di Torino & EUI - Florence School of Regulation and Imperial College Business School
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47.

Firm Size Distribution in Small Samples

Bulletin of Economic Research, Vol. 56, No. 4, pp. 301-309, October 2004
Number of pages: 10 Posted: 08 Oct 2004
Luigi Buzzacchi and Tommaso M. Valletti
Polytechnic University of Turin and Imperial College Business School
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48.

First and Second Prizes in Imperfectly Discriminating Contests

CEPR Discussion Paper No. 4484
Number of pages: 25 Posted: 12 Aug 2004
Stefan Szymanski and Tommaso M. Valletti
Imperial College London - Imperial College of Science, Technology and Medicine and Imperial College Business School
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Citation 1
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Imperfectly discriminating (logit) contests, prizes

49.

Input Price Discrimination with Downstream Cournot Competitors

CEPR Discussion Paper No. 3570
Number of pages: 22 Posted: 01 Nov 2002
Tommaso M. Valletti
Imperial College Business School
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Citation 15
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input price discrimination

50.

Universal Service and Entry: The Role of Uniform Pricing and Coverage Constraints

CEPR Discussion Paper No. 2789
Number of pages: 30 Posted: 14 May 2001
Tommaso M. Valletti, Steffen Hoernig and Pedro P. Barros
Imperial College Business School, Nova School of Business and Economics and Universidade Nova de Lisboa
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Citation 37
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Competition, coverage constraint, uniform pricing constraint, universal service

51.

Net Neutrality: A Fast Lane to Understanding the Trade-Offs

NBER Working Paper No. w21950
Number of pages: 32 Posted: 01 Feb 2016
Shane M. Greenstein, Martin Peitz and Tommaso M. Valletti
Harvard University - Technology & Operations Management Unit, University of Mannheim - Department of Economics and Imperial College Business School
Downloads 18 (526,478)
Citation 20

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52.

Testing the 'Waterbed' Effect in Mobile Telephony

Journal of the European Economic Association (Vol. 9, Issue 6, pp. 1114-1142), 2011
Number of pages: 45 Posted: 19 Jan 2016
Christos Genakos and Tommaso M. Valletti
Cambridge Judge Business School and Imperial College Business School
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Waterbed effect, Regulation, Termination rates, mobile telephony

53.

Parallel Trade, Price Discrimination, Investment and Price Caps

Economic Policy, Vol. 20, No. 44, pp. 705-749, October 2005
Number of pages: 44 Posted: 06 Nov 2005
Stefan Szymanski and Tommaso M. Valletti
Imperial College London - Imperial College of Science, Technology and Medicine and Imperial College Business School
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Citation 13
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54.

Book Reviews

Economica, Vol. 69, pp. 525-532, 2002
Number of pages: 8 Posted: 09 Jul 2003
Dennis C. Mueller, Tommaso M. Valletti, Walter Eltis and Ronald Schettkat
University of Vienna - Center for Business Studies - Department of Economics, Imperial College Business School, University of Oxford and University of Wuppertal - Department of Economics
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55.

Seesaw in the Air: Interconnection Regulation and the Structure of Mobile Tariffs

Information, Economics and Policy (Vol. 23, n. 2, pp. 159-170), 2011
Number of pages: 30 Posted: 19 Jan 2016
Christos Genakos and Tommaso M. Valletti
Cambridge Judge Business School and Imperial College Business School
Downloads 9 (580,223)
Citation 1

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Mobile telephony, termination rates, two-way access charges, regulation

56.

Buyer Power and the Waterbed Effect

The Journal of Industrial Economics, Vol. 59, Issue 1, pp. 1-20, 2011
Number of pages: 20 Posted: 28 Mar 2011
Roman Inderst and Tommaso M. Valletti
Goethe University Frankfurt and Imperial College Business School
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Citation 18
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57.

Indirect Versus Direct Constraints in Markets with Vertical Integration

Scandinavian Journal of Economics, Vol. 111, Issue 3, pp. 527-546, September 2009
Number of pages: 20 Posted: 15 Oct 2009
Roman Inderst and Tommaso M. Valletti
Goethe University Frankfurt and Imperial College Business School
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Citation 1
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58.

Horizontal Mergers and Product Innovation

CEPR Discussion Paper No. DP12759
Number of pages: 23 Posted: 06 Mar 2018
Giulio Federico, Gregor Langus and Tommaso M. Valletti
Chief Economist Team, DG Competition, European Commission, European Union - European Commission and Imperial College Business School
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Citation 8
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Innovation, mergers, R&D

59.

When Two-Part Tariffs are Not Enough: Mixing with Nonlinear Pricing

CEPR Discussion Paper No. DP7720
Number of pages: 27 Posted: 09 Mar 2010
Steffen Hoernig and Tommaso M. Valletti
Nova School of Business and Economics and Imperial College Business School
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Citation 1
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Exclusivity, Mixing goods, Nonlinear tariffs, Two-part tariffs

60.

Active and Passive Waste in Government Spending: Evidence from a Policy Experiment

CEPR Discussion Paper No. DP6799
Number of pages: 63 Posted: 12 Jun 2008
Oriana Bandiera, Andrea Prat and Tommaso M. Valletti
London School of Economics & Political Science (LSE) - Suntory and Toyota International Centres for Economics and Related Disciplines (STICERD), Columbia Business School - Finance and Economics and Imperial College Business School
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Citation 76
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government spending, waste

61.

Market Analysis in the Presence of Indirect Constraints and Captive Sales

Journal of Competition Law and Economics, Vol. 3, Issue 2, pp. 203-231, 2007
Posted: 14 Jul 2008
Roman Inderst and Tommaso M. Valletti
Goethe University Frankfurt and Imperial College Business School

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