Stefan Thomas

University of Tuebingen - Faculty of Law

Professor

Geschwister Scholl Platz

Tuebingen, 72074

Germany

http://www.jura.uni-tuebingen.de/professoren_und_dozenten/thomas

  • University of Tuebingen - Faculty of Law

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    • Tel: 0049-7071-29-72556
    • Fax: 0049-7071-29-2105
SCHOLARLY PAPERS

24

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Scholarly Papers (24)

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1.

Normative Goals in Merger Control: Why Merger Control Should Not Attempt to Achieve 'Better' Outcomes than Competition

Number of pages: 23 Posted: 27 Jan 2020 Last Revised: 27 Feb 2021
Stefan Thomas
University of Tuebingen - Faculty of Law
Downloads 602 (87,913)
Citation 2

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mergers, consumer welfare, environment, industrial policy, labour markets

2.

Harmful Signals - Cartel Prohibition and Oligopoly Theory in the Age of Machine Learning

Journal of Competition Law & Economics (Forthcoming)
Number of pages: 27 Posted: 10 Jun 2019 Last Revised: 12 Sep 2019
Stefan Thomas
University of Tuebingen - Faculty of Law
Downloads 455 (123,724)
Citation 4

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algorithms, cartel, collusion, machine learning, oligopoly, signaling

3.

Reflective Willingness to Pay: Preferences for Sustainable Consumption in a Consumer Welfare Analysis

Downloads 408 (140,491)
Citation 1

Reflective Willingness to Pay: Preferences for Sustainable Consumption in a Consumer Welfare Analysis

LawFin Working Paper No. 14
Number of pages: 26 Posted: 14 Jan 2021 Last Revised: 07 Jul 2021
Stefan Thomas and Roman Inderst
University of Tuebingen - Faculty of Law and Goethe University Frankfurt
Downloads 407 (139,561)

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Antitrust, Consumer Welfare, Sustainability

Reflective Willingness to Pay: Preferences for Sustainable Consumption in a Consumer Welfare Analysis

CEPR Discussion Paper No. DP16917
Number of pages: 29 Posted: 04 Feb 2022
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
Downloads 1 (1,248,433)
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Antitrust, consumer welfare, sustainability

4.

Sustainability Agreements in the European Commission’s Draft Horizontal Guidelines

Number of pages: 11 Posted: 04 Apr 2022
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
Downloads 394 (146,615)
Citation 1

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Sustainability, Sustainability Benefits, Collective Benefits

5.

Prospective Welfare Analysis - Extending Willingness-to-Pay Assessment to Embrace Sustainability

Downloads 386 (149,584)
Citation 3

Prospective Welfare Analysis - Extending Willingness-to-Pay Assessment to Embrace Sustainability

LawFin Working Paper No. 29
Number of pages: 28 Posted: 30 Nov 2020 Last Revised: 13 Jan 2022
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
Downloads 385 (148,729)
Citation 3

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Antitrust, Consumer Welfare, Sustainability

Prospective Welfare Analysis - Extending Willingness-to-Pay Assessment to Embrace Sustainability

CEPR Discussion Paper No. DP16916
Number of pages: 36 Posted: 04 Feb 2022
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
Downloads 1 (1,248,433)
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Antitrust, consumer welfare, sustainability

6.

Sustainability Agreements and Social Norms

Downloads 349 (167,160)
Citation 1

Sustainability Agreements and Social Norms

Number of pages: 23 Posted: 19 Jul 2021 Last Revised: 08 Feb 2022
Roman Inderst, Felix Rhiel and Stefan Thomas
Goethe University Frankfurt, Goethe University Frankfurt and University of Tuebingen - Faculty of Law
Downloads 349 (165,833)
Citation 1

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Horizontal agreements; sustainability; willingness-to-pay; conjoint analysis

Sustainability Agreements and Social Norms

CEPR Discussion Paper No. DP16881
Number of pages: 23 Posted: 04 Feb 2022
Roman Inderst, Felix Rhiel and Stefan Thomas
Goethe University Frankfurt, Goethe University Frankfurt and University of Tuebingen - Faculty of Law
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conjoint analysis, Horizontal agreements, sustainability, willingness-to-pay

7.

The Scope and Limitations of Incorporating Externalities in Competition Analysis within a Consumer Welfare Approach

Downloads 332 (176,436)

The Scope and Limitations of Incorporating Externalities in Competition Analysis within a Consumer Welfare Approach

Number of pages: 28 Posted: 02 Aug 2021 Last Revised: 27 Dec 2021
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
Downloads 332 (175,126)

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Sustainability; externalities; willingness-to-pay

The Scope and Limitations of Incorporating Externalities in Competition Analysis within a Consumer Welfare Approach

CEPR Discussion Paper No. DP16879
Number of pages: 31 Posted: 04 Feb 2022
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
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Externalities, sustainability, willingness-to-pay

8.

Legal Design in Sustainable Antitrust

Number of pages: 29 Posted: 06 Apr 2022 Last Revised: 18 Sep 2022
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
Downloads 325 (181,691)

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sustainability, ancillary restraints doctrine

9.

Ex-Ante and Ex-Post Control of Buyer Power

Number of pages: 33 Posted: 13 May 2015 Last Revised: 16 Feb 2018
Stefan Thomas
University of Tuebingen - Faculty of Law
Downloads 313 (188,312)

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buyer power, monopsony, abuse of dominance, merger control, waterbed effect, spiral effect, allocative efficiency, dynamic efficiency, consumer welfare

10.

Close Competitors in Merger Review

Journal of European Competition Law & Practice, 2013, p. 391 - 401
Number of pages: 24 Posted: 22 Jun 2015 Last Revised: 23 Jun 2015
Stefan Thomas
University of Tuebingen - Faculty of Law
Downloads 279 (211,704)

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antitrust, mergers, unilateral effects, market definition, market dominance, relevant market, upward pricing pressure

11.

Common Ownership and Mergers between Portfolio Companies

Downloads 271 (218,155)

Common Ownership and Mergers between Portfolio Companies

Number of pages: 20 Posted: 26 Jul 2019
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
Downloads 271 (216,869)

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common ownership, Herfindahl-Hirschman Index, horizontal effects, innovation competition, merger control, unilateral effects

Common Ownership and Mergers between Portfolio Companies

CEPR Discussion Paper No. DP16904
Number of pages: 23 Posted: 04 Feb 2022
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
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Common ownership, Herfindahl-Hirschman Index, horizontal effects, innovation competition, Merger Control, Unilateral Effects

12.

Guilty of a Fault that One Has Not Committed: The Limits of the Group-Based Sanction Policy Carried Out by the Commission and the European Courts In EU-Antitrust Law

Journal of European Competition Law & Practice, 2012, 11-28
Number of pages: 38 Posted: 03 Jul 2015
Stefan Thomas
University of Tuebingen - Faculty of Law
Downloads 271 (218,155)

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antitrust, economic entity, fine, parent company

13.

Algorithms and Antitrust: A Framework with Special Emphasis on Coordinated Pricing

Number of pages: 30 Posted: 07 May 2024
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
Downloads 239 (248,968)

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Algorithmic Pricing, Cartel, Collusion, Platform

14.

Horizontal Restraints on Platforms: How Digital Ecosystems Nudge into Rethinking the Construal of the Cartel Prohibition

Number of pages: 25 Posted: 03 Aug 2020 Last Revised: 18 Mar 2021
Stefan Thomas
University of Tuebingen - Faculty of Law
Downloads 237 (248,968)

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algorithm, ancillary restraints, cartel, consumer welfare, platform

15.

The More Economic Judicature: How the General Court has Recalibrated the Merger Gauge

Competition Policy International, Forthcoming
Number of pages: 8 Posted: 22 Jul 2020
Tilman Kuhn and Stefan Thomas
Independent and University of Tuebingen - Faculty of Law
Downloads 237 (248,968)

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close competitors, important competitive force, mergers, SIEC test, UPP analysis

16.

Measuring Consumer Sustainability Benefits

Downloads 169 (339,422)

Measuring Consumer Sustainability Benefits

Number of pages: 9 Posted: 04 Sep 2021
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
Downloads 167 (342,673)

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Antitrust, Consumer Welfare, Sustainability

Measuring Consumer Sustainability Benefits

CEPR Discussion Paper No. DP16903
Number of pages: 12 Posted: 04 Feb 2022
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
Downloads 2 (1,233,778)
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Antitrust, consumer welfare, sustainability

17.

Structure and Enforcement of the SIEC Test: Analyzing the CK Telecoms Judgment of the Court of Justice

Number of pages: 40 Posted: 14 Sep 2023 Last Revised: 27 Oct 2023
Stefan Thomas
University of Tuebingen - Faculty of Law
Downloads 165 (350,086)

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merger control; SIEC test; unilateral effects

18.

Price Pressure Indices, Innovation and Mergers Between Commonly Owned Firms

Downloads 137 (403,028)

Price Pressure Indices, Innovation and Mergers Between Commonly Owned Firms

Number of pages: 22 Posted: 26 Jul 2019
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
Downloads 137 (403,898)

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Price Pressure Indices, Innovation and Mergers between Commonly Owned Firms

CEPR Discussion Paper No. DP16905
Number of pages: 25 Posted: 04 Feb 2022
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law
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Common ownership, Herfindahl-Hirschman Index, horizontal effects, innovation competition, Merger Control, Unilateral Effects, upward pricing pressure

19.

The Draft Provisions on Antitrust Fines in the Commission's Ecn Proposal

Zeitschrift für Wettbewerbsrecht (ZWeR - Journal of Competition Law) 2018
Number of pages: 26 Posted: 23 Feb 2018
Stefan Thomas and Manuel Dueñas
University of Tuebingen - Faculty of Law and University of Tuebingen - Faculty of Law
Downloads 136 (405,319)
Citation 1

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antitrust sanctions, national competition authorities, leniency application, European competition network, antitrust compliance, economic entity doctrine

20.

Amazon and Online Competitor Prices: The Role of Shipping Costs in a Hybrid Platform Environment

Number of pages: 43 Posted: 18 Dec 2023
Krisztian Gado, Raphael Schoenle and Stefan Thomas
Brandeis University - International Business School, Brandeis University and University of Tuebingen - Faculty of Law
Downloads 115 (460,851)

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Amazon pricing, online retailers, relative price distribution, percentage price difference distribution

21.

De-Merger Regimes in Europe - Are National Deconcentration Powers an Appropriate Tool for Enhancing Competition in the EU?

Journal of European Competition Law & Practice, 2011, 201-216
Number of pages: 34 Posted: 30 Jul 2015
Stefan Thomas
University of Tuebingen - Faculty of Law
Downloads 88 (553,141)

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antitrust, dominance, deconcentration, de-merger, breaking up firms

22.

Personalisierte Preise – Zivilrecht, Markt, Wettbewerb/Personalized Prices - Private Law, Market, Competition

Number of pages: 31 Posted: 07 May 2024
Stefan Thomas
University of Tuebingen - Faculty of Law
Downloads 84 (568,927)

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personalized prices; antitrust; competition; GDPR

23.

Die Streitverkündung im kartellrechtlichen Schiedsverfahren (Third Party-Notice in Antitrust Arbitration)

Veröffentlicht in: Fairness Justice Equity, Festschrift für Reinhold Geimer zum 80. Geburtstag, (Rolf A. Schütze, Hrsg.), S. 735-743, 2017
Number of pages: 10 Posted: 10 Nov 2020
Stefan Thomas
University of Tuebingen - Faculty of Law
Downloads 73 (616,364)

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Antitrust, Kartellrecht, Schiedsverfahren, Streitverkündung

24.

Competition Policy and the Environment

Annual Review of Resource Economics, Vol. 15, Issue 1, pp. 199-211, 2023
Posted: 10 Oct 2023
Roman Inderst and Stefan Thomas
Goethe University Frankfurt and University of Tuebingen - Faculty of Law

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