18 December  2003
Berlin (Germany)

„’Unmöglichkeit’ – Zur Rolle eines überkommenen Rechtsbegriffes im System des neuen Schuldrechts“  [’Impossibility’ – On the Role of a traditional legal concept in the system of the new German law of obligations - in German]

Faculty of Law, Freie Universität Berlin (Germany)

20 November  2004

Berlin (Germany)

„’Unionsprivatrecht’ – Neue Rahmenbedingungen für die Privatrechtsetzung in der EU durch die Europäische Verfassung“ ['Union Private Law‘ – A New Framework for the Creation of Private Law in the EU through the European Constitution - in German]

Conference Europäisches Privat- und Wirtschaftsrecht – Rückblick und Ausblick (19 and 20 November 2004), Magnus-Haus Berlin (Germany)

31 October 2007

Osnabrück (Germany)

„Schaffung und Akzeptanz einheitlichen Privatrechts in Europa – Lehren aus der Anwendung des UN-Kaufrechts für ein Europäisches Vertragsrecht“ [Creation and Acceptance of Uniform Private Law in Europe – Lessons from the Application of the UN Sales Law (CISG) for a European Contract Law - in German]

International Lawyers Association Osnabrück (Germany)

22 November 2008

Heidelberg (Germany)

„Untersuchungspflicht und Vertretenmüssen des Händlers bei der Lieferung sachmangelhafter Ware“  [Investigation Duties and Fault of the Trader Concerning the Delivery of Non-Conforming Goods - in German]

Ruprecht-Karls-University Heidelberg (Germany)

20 March 2009

Hongkong (China)

“’The Greatest Uncontrolled Power within the Global Financial System’ – The rating agencies: their influence, how their mistakes affect the financial markets and what the law can do about it”

University of Hong Kong, Hong Kong (China)

25 March 2009

Hongkong (China)

“Credit Rating Agencies and Financial Market Regulation: The use of ratings for regulatory purposes and regulatory approaches to rating agencies”

Securities and Futures Commission of Hong Kong, Hong Kong (China)

2 April 2009

Wien (Austria)

“Global Uniform Sales Law – with a European Twist? CISG Interaction with EU Law”

Conference Issues on the CISG Horizon, Vienna (Austria)

5 May 2009

Hamburg (Germany)

“Ratings – Bonitätsbeurteilungen durch Dritte im System des Kapitalmarkt-, Gesellschafts- und Vertragsrechts” [Ratings – Creditworthiness Assessments by Third Parties within the System of Capital Markets Law, Company Law and Contract Law - in German]

Sixth Habilitandenkolloquium (4 and 5 May 2009), Max-Planck-Institute for Foreign and International Private Law Hamburg (Germany)

10 February 2011

Freiburg (Germany)

„Schutz des Erfüllungsinteresses durch Schadensersatz“ [Protection of Performance Interest through Claims for Damages - in German]

Faculty of Law of the Albert-Ludwigs-University Freiburg (Germany)

12 November 2011

Gainesville (U.S.A.)

“To Exclude, to Ignore, or to Use? Empirical Evidence on Courts’, Parties’ and Counsels’ Approach to the CISG (with some Remarks on Professional Liability)”

Conference The Global Challenge of International Sales Law (11 and 12 November 2011), University of Florida, Gainesville (U.S.A.)

25 May 2012

Istanbul (Turkey)

“General Contract Conditions and the CISG”

Conference The New International Sales Law of Turkey: CISG from a Comparative Viewpoint (25 and 26 May 2012), Bilgi University, Istanbul (Turkey)

22 November 2012

Frankfurt am Main (Germany)

“Die Rolle der Rating-Agenturen und ihrer Ratings aus der Perspektive des Rechts” [The role of the credit rating agencies and their ratings from a legal perspective – in German]

Symposium on the Law of Credit Rating Agencies, True Sale International, Frankfurt am Main (Germany)

18 January 2013

Philadelphia (U.S.A.)

“Defining the Borders of Uniform International Contract Law: The CISG and Remedies for Fraudulent, Negligent or Innocent Misrepresentation”

Norman J. Shachoy Law Review Symposium: “Assessing the CISG and Other International Endeavors to Unify International Contract Law: Has the Time Come for a New Global Initiative to Harmonize and Unify International Trade?”, Villanova University School of Law, Philadelphia (U.S.A.)

10 March 2013

Hongkong (China)

“Application of CISG Art. 96: Scope of the Provision and Effects of Contracting States’ Reservations”

Generations in Arbitration Conference: “Bridging the Cultural Gap: the Evolution and Harmonization of Arbitration Practices”, Hong Kong (China)

21 March 2013

Wien (Austria)

“International Uniform Law v. Domestic Law: The Irrelevance of the ‘Validity Exception’ in Article 4 CISG and a Novel Approach to Determine the Convention’s Scope”

5th Annual MAA Schlechtriem CISG Conference: “Boundaries and Intersections”, Vienna (Austria)

20 October 2013

Peking (China)

“The Withdrawal of State Declarations under Uniform Private Law Conventions”

Conference "Unification of International Trade Rules in the Age of Globalization: China and the World" (19/20 October 2013), Tsinghua University, Beijing (China)

19 March 2014

Curitiba (Brazil)

“Inclusion of Standard Terms (and related Problems concerning e-commerce)”

Conference “Brazil and the CISG” (19/20 March 2014)
Universidade Positivo, Curitiba (Brazil)

9 May 2014

Mannheim (Germany)

“Zu viel der Worte? Informationsumfang und Adressatenhorizont im geltenden Privat- und Wirtschaftsrecht” [Too many words? Information amount and addressees' abilities in current private and business law" - in German]

University of Mannheim (Germany)

27 May 2014

(South Africa)

“The Modern Travelling Merchant: Mobile Communication in International Contract Law”

Conference “The Use of UNCITRAL Instruments to Promote Regional Harmonization” (26/27 May 2014)
University of South Africa, Pretoria (South Africa)

14 October 2014

Wiesbaden (Germany)

“Who Should Regulate the Rating Agencies (and How)? The Market vs. Transnational Principles vs. Regional Law Makers”

EBS Law School (Germany)

29 January 2015

Basel (Switzerland)

“Reservations and the CISG”

Conference „The CISG and Beyond“ (29/30 January 2015),
University of Basel (Switzerland)

6 February 2015

San Diego (U.S.A.)

“Conflicts of Interests in International Arbitration: Recent Developments”

Conference “Contemporary Trends in Arbitration”
University of San Diego School of Law (U.S.A.)

4 March 2015

Curitiba (Brazil)

“Validity and Other Issues Excluded from the CISG”

Conference “A CISG e o Brasil 2015"
Câmara de Arbitragem e Mediação da Federação das Indústrias do Paraná (CAMFIEP), Curitiba

14 March 2015

Hongkong (China)

“Fundamental Breach of Contract under the CISG: Commodity Trade and Documentary Sales” and "The CISG's Applicability to Hong Kong"

Conference Generations in Arbitration IX: “The Evolving Face of International Arbitration: from the East to the West” (China)


17 March 2015

Hongkong (China)

“Documentary Sales under the CISG: Fundamental Breach of Contract and the Concept of Strict Compliance”

City University of Hong Kong (China)

25 March 2015

Fribourg (Switzerland)

“Das neue Gemeinsame Europäische Kaufrecht (CESL) – Option auch für Schweizer Unternehmen?“ [The New Common European Sales Law (CESL) - an Option for Swiss Cooperations as well? - in German]

Institute for European Law, University of Fribourg (Switzerland)


3 September 2015

Cambridge (England)

“‘Directing Commercial or Professional Activities’ as a Novel Connecting Factor in European Private International Law: Essential Response to the Internet Age or Black Hole for Business-to-Consumer E-Commerce?“

Journal of Private International Law 10th Anniversary Conference (3 – 5 September 2015)

University of Cambridge


12 November 2015

Mannheim (Germany)

“Using Credit Ratings as Regulatory Tools: Effects on the Competition between Credit Rating Agencies and Legal Limits to their Regulation”

MaCCI Competition and Regulation Day

Mannheim Centre for Competition and Innnovation

29.17 November 2015

Vaduz (Liechtenstein)

“Grenzüberschreitende Verantwortlichkeit von Rating‐Agenturen” [The Cross-Border Responsibility of Rating Agencies - in German]

Conference “Das Internationale Privatrecht der Finanzdienstleistungen: Die grenzüberschreitende Dimension des Bank- und Kapitalmarktrechts” 

University of Liechtenstein


25 November 2015

Darmstadt (Germany)

“Die Zukunft der Streitbeilegung” [The Future of Dispute Resolution - in German]

CMS Dispute Resolution Congress 2015 „Risiko und Verantwortung“ (24/25 November 2015)

Hotel Jagdschloss Kranichstein

1/2 December 2015

Zagreb (Croatia)

Country Report Germany

Conference “35 Years of CISG – Present Experiences and Future Challenges” (1 – 2 December 2015)

University of Zagreb


5 February 2016

Guadalajara (Mexico)

“Remedies for Breach of Contract: Damages”

CISG-Arbitration Conference

Universidad Panamericana
33.29 Feburary 2016

Mannheim (Germany)
“Shifting the Burden of Proof – An Efficient Alternative to Document Production?”

Mannheim International Arbitration Conference 2016: “Effective Fact-Finding vs. Information Overload: Too Much Paper in Arbitration?”

University of Mannheim
5 March 2016

Hongkong (China)
“Burden of Proof under the CISG"

Conference Generations in Arbitration X: “Confrontation and Cooperation in International Arbitration: Finding a Common Path in Cross-Border Disputes”
7 April 2016


“European Financial Regulation”

National Bank of Ukraine
36.8 April 2016

“The EU-Ukraine Association Agreement Two Days after the Dutch Referendum: Possible Ways Forward”

Panel Discussion “European Integration of Ukranian Business Law”

Faculty of Law, Taras Shevchenko National University of Kyiv
16 April 2016

Hongkong (China)

“Performance and Breach: A Civil Law Perspective”

Conference “Perspectives on Chinese Contract Law” (15/16 April 2016)

City University of Hong Kong

38.20 May 2016

Rome (Italy)

“Contract validity and the CISG”

Conference “United Nations Convention on Contracts for the International Sale of Goods (CISG), UNIDROIT Principles of International Commercial Contracts: Contrast and Convergence”

International Institute for the Unification of Private Law (UNIDROIT)

6 October 2016

Mannheim (Germany)
“Die (fortbestehende) Mitgliedschaft des Vereinigten Königreichs im Europäischen Wirtschaftsraum (EWR): Hat der Brexit geringere Auswirkungen als erwartet?” [- in German]

Lecture and discussion event: "The aftermath of Brexit for the financial sector"“

University of Mannheim

8 October 2016

Leiden (Netherlands)
“Leuchtturm oder ‘Zwarte Piet’ der Finanzmärkte? Zur Regulierung und Haftung der Rating-Agenturen”

68th German-Dutch Laywers' Conference (7 – 9 October 2016)

University of Leiden


13 October 2016

Mannheim (Germany)

“Die neue CSR-Berichterstattung und ihre Auswirkungen auf die Unternehmensverfassung”

Arbeitskreis Recht und Wirtschaft Nordbaden und Nordwürttemberg
18 November 2016

Washington, D.C. (U.S.A.)
“Party autonomy in institutional arbitration: The difficult case of 'mix and match' institutional arbitration agreements”

8th Conference on Teaching Transnational Commercial Law: „State of Affairs and Recent Developments in International Commercial Arbitration: The New York Convention, UNCITRAL Rules 2010 and Current Work on Settlement of Commercial Disputes“ (17.–19. November 2016)

Georgetown University


6 December 2016

Vienna (Austria)

Keynote Speech: “A matter of (anti-) trust: Competition law and arbitration in times of growing public distrust toward arbitration”

Annual conference of Young Austrian Arbitration Practitioners (YAAP)

Vienna International Arbitral Centre (VIAC), Chamber of Commerce Austria


6 January 2017 


“Does the 1980 Vienna Sales Convention reflect universal values? The use of the CISG as a model and regional specificities”

Conference „The CISG as a Model for Harmonisation, Convergence and Law Reform“ (6/7 January 2017)

National University of Singapore


26 January 2017

Muenster (Germany)

“UN-Kaufrecht und digitale Herausforderungen” 

Centre for European Private Law, Westfälische Wilhelms-University Münster

10 February 2017

Guadalajara (Mexico)
“Seller’s International Liability for Third Party Intellectual Property Rights and the European Unitary Patent”

UP Guadalajara 2017 International Arbitration & CISG Conference

Universidad Panamericana