Center for Mathematical Economics

Frank Riedel as Keynote Speaker at D-TEA 2026

Center for Mathematical Economics — Mon, 1 Jun 2026 00:00:00 +0200

Frank Riedel is a keynote speaker at the D-TEA 2026: Decision, Theory, Experiments, and Applications conference, which takes place at the Paris School of Economics (PSE) from June 1 to 3, 2026.
He presents his work Knightian Uncertainty under Identifiability: Uncertainty Sharing, Insurance, and Portfolio Choice.

Frank Riedel ist Keynote Speaker auf der D-TEA 2026: Decision, Theory, Experiments, and Applications Konferenz, die vom 1. bis 3. Juni 2026 an der Paris School of Economics (PSE) stattfindet.
Er präsentiert seine Arbeit Knightian Uncertainty under Identifiability: Uncertainty Sharing, Insurance, and Portfolio Choice.

Robert Fiedler and Justus Kreft visit the National University of Singapore

Center for Mathematical Economics — Mon, 1 Jun 2026 00:00:00 +0200

Robert Fiedler and Justus Kreft are currently visiting the National University of Singapore (NUS) and are hosted by the Institute for Mathematical Sciences (IMS).
During their stay, they are participating in the Quantitative Finance Summer School (June 2–5, 2026), the Quantitative Finance Workshop (June 8–9, 2026), and the Quantitative Finance Conference (June 10–12, 2026).

Robert Fiedler und Justus Kreft sind derzeit zu Gast an der National University of Singapore (NUS) und werden dort vom Institute for Mathematical Sciences (IMS) beherbergt.
Während ihres Aufenthalts nehmen sie an der Quantitative Finance Summer School (2.–5. Juni 2026), dem Quantitative Finance Workshop (8.–9. Juni 2026) sowie der Quantitative Finance Conference (10.–12. Juni 2026) teil.

Papatya Duman and Dominik Karos at the 29th CTN Conference

Center for Mathematical Economics — Thu, 21 May 2026 00:00:00 +0200

Papatya Duman and Dominik Karos participated in the 29th CTN Conference at the Università degli Studi di Padova, which took place from May 21 to 22, 2026.
The Coalition Theory Network (CTN) is an association of ten leading scientific institutions, including the IMW, dedicated to advancing and promoting research in network theory and coalition formation.
At this year’s annual conference, Dominik represented the IMW as a member of the CTN Scientific Board, while Papatya presented her research on Core Extensions with Hierarchical Coalitional Rationality.

Papatya Duman und Dominik Karos nahmen an der 29th CTN Conference an der Università degli Studi di Padova teil, die vom 21. bis 22. Mai 2026 stattfand.
Das Coalition Theory Network (CTN) ist ein Zusammenschluss von zehn führenden wissenschaftlichen Institutionen, darunter das IMW, mit dem Ziel, Forschung im Bereich der Netzwerktheorie und Koalitionsbildung zu fördern und weiterzuentwickeln.
Auf der diesjährigen Konferenz vertrat Dominik das IMW als Mitglied des CTN Scientific Board, während Papatya ihre Forschung zum Thema Core Extensions with Hierarchical Coalitional Rationality präsentierte.

Annika Kemper Hoepfner wins 2025 IJTAF Best Paper Award

Center for Mathematical Economics — Wed, 13 May 2026 00:00:00 +0200

World Scientific has announced that René Aïd, Annika Kemper Hoepfner, and Nizar Touzi are the recipients of the 2025 IJTAF Best Paper Award for their paper A Principal-Agent Model for Optimal Incentives in Renewable Investments.
At the time the paper was written, Annika was a doctoral researcher at the IMW. Congratulations!

World Scientific hat bekannt gegeben, dass René Aïd, Annika Kemper Hoepfner und Nizar Touzi den 2025 IJTAF Best Paper Award für ihr Paper A Principal-Agent Model for Optimal Incentives in Renewable Investments erhalten haben.
Annika war zum Zeitpunkt der Entstehung des Papers Doktorandin am IMW. Herzlichen Glückwunsch!

Luoyuan Gan at Optimization Days 2026

Center for Mathematical Economics — Mon, 11 May 2026 14:21:21 +0200

Luoyuan Gan gives a presentation titled Optimal R&D and Investment Under Minimum Technology Standards today at the Optimization Days 2026 (jopt2026) at HEC Montréal, Canada.

Luoyuan Gan hält heute auf den Optimization Days 2026 (jopt2026) an der HEC Montréal einen Vortrag mit dem Titel Optimal R&D and Investment Under Minimum Technology Standards.

Ferrari, Klinge, Schmeck and Spengemann at the 13th Conference of Actuarial Science and Finance on Samos

Center for Mathematical Economics — Mon, 11 May 2026 00:00:00 +0200

Giorgio Ferrari, Jonathan Klinge, Maren Schmeck, and Marco Spengemann participated in the 13th Conference of Actuarial Science and Finance on Samos, which took place from May 11 to 16, 2026.
Giorgio Ferrari presented Optimal Consumption and Portfolio Choice with No-Borrowing Constraint in the Kim–Omberg Model. Jonathan Klinge presented his work on Optimal Protective Investment in the Classical Risk Model. Maren Schmeck gave a talk titled Asymptotics of Ruin Probabilities in a Subordinated Cramér–Lundberg Model, while Marco Spengemann presented Optimal Design of Model-Contingent Insurance Contracts.

Giorgio Ferrari, Jonathan Klingemann, Maren Schmeck und Marco Spenge nahmen an der 13th Conference of Actuarial Science and Finance on Samos teil, die vom 11. bis 16. Mai 2026 stattfand.
Giorgio Ferrari präsentierte Optimal Consumption and Portfolio Choice with No-Borrowing Constraint in the Kim–Omberg Model. Jonathan Klinge präsentierte seine Arbeit Optimal Protective Investment in the Classical Risk Model. Maren Schmeck hielt einen Vortrag mit dem Titel Asymptotics of Ruin Probabilities in a Subordinated Cramér–Lundberg Model, während Marco Spengemann sein Paper Optimal Design of Model-Contingent Insurance Contracts vorstellte.

Frank Riedel in Budapest

Center for Mathematical Economics — Mon, 4 May 2026 09:22:12 +0200

Frank Riedel will give a seminar at Corvinus University Budapest on May 6. He will present his research as part of the CUBE Seminar Series.

Frank Riedel hält am 6. Mai ein Seminar an der Corvinus-Universität Budapest. Er präsentiert seine Forschung im Rahmen der CUBE Seminarreihe.

Dominik Karos, Tianyu Ma and Marco Spengemann at QED Jamboree 2026

Center for Mathematical Economics — Fri, 17 Apr 2026 00:00:00 +0200

Dominik Karos, Tianyu Ma, and Marco Spengemann participated in the Annual QED Jamboree 2026 in Padova from April 17 to 18.
Tianyu presented his work on Ambiguous Contracts with an α-MEU Agent, while Marco presented Optimal Design of Model-Contingent Insurance Contracts.

Dominik Karos, Tianyu Ma und Marco Spengemann nahmen vom 17. bis 18. April am Annual QED Jamboree 2026 in Padua teil.
Tianyu stellte seine Arbeit zu Ambiguous Contracts with an α-MEU Agent vor, während Marco Optimal Design of Model-Contingent Insurance Contracts präsentierte.

Fabian Fuchs successfully defends his doctoral thesis

Center for Mathematical Economics — Fri, 17 Apr 2026 00:00:00 +0200

Today, April 17, 2026, Fabian Fuchs successfully defended his thesis.
Congratulations!

Heute, am 17. April 2026, hat Fabian Fuchs erfolgreich seine Dissertation verteidigt.
Herzlichen Glückwunsch!

Prince Osei in Kyoto

Center for Mathematical Economics — Wed, 8 Apr 2026 09:36:00 +0200

Prince Osei is beginning his three-month research stay at Kyoto University, where he will be supervised by Chiaki Hara. During his stay, he will focus on portfolio choice and the Capital Asset Pricing Model (CAPM) within the framework of the Smooth Ambiguity Model.

Prince Osei beginnt seinen dreimonatigen Forschungsaufenthalt an der Universität Kyoto, wo er von Chiaki Hara betreut wird. Während seines Aufenthalts wird er sich auf portfolio choice and the Capital Asset Pricing Model (CAPM) within the framework of the Smooth Ambiguity Model konzentrieren.

Benjamin Bitterlich in Oslo

Center for Mathematical Economics — Sun, 5 Apr 2026 00:00:00 +0200

Benjamin Bitterlich is beginning his one-month research stay at BI Norwegian Business School in Oslo, where he will be supervised by Fred Espen Benth. During his stay, he will be working on their project on Hedging Power Purchase Agreements.

Benjamin Bitterlich beginnt seinen einmonatigen Forschungsaufenthalt an der Handelshøyskolen BI in Oslo, wo er von Fred Espen Benth betreut wird. Während seines Aufenthalts wird er an ihrem Projekt Hedging Power Purchase Agreements arbeiten.

New Exchange Agreement with KIER

Center for Mathematical Economics — Thu, 2 Apr 2026 16:45:34 +0200

On December 5, 2025, the IMW signed an academic exchange agreement with the Kyoto Institute of Economic Research (KIER), a premier research institution in Japan with a strong international research profile. The agreement was concluded by IMW Director Frank Riedel and KIER Director Tadashi Sekiguchi.

As part of this collaboration, Frank Riedel visited KIER from March 31 to April 3, 2026. During his stay, he presented recent research in the Microeconomics and Game Theory Study Group and initiated new joint research projects. On April 2, he gave a research seminar on Belief-Efficiency in Markets.

Further activities, including joint workshops and continued collaboration among faculty and young researchers, are planned.

Am 5. Dezember 2025 unterzeichnete das IMW ein Abkommen über den akademischen Austausch mit dem Kyoto Institute of Economic Research (KIER), einer führenden Forschungseinrichtung in Japan mit einem ausgeprägten internationalen Forschungsprofil. Das Abkommen wurde von IMW-Geschäftsführer Frank Riedel und KIER-Direktor Tadashi Sekiguchi geschlossen.

Im Rahmen dieser Zusammenarbeit besuchte Frank Riedel vom 31. März bis zum 3. April 2026 das KIER. Während seines Aufenthalts stellte er in der Arbeitsgruppe für Mikroökonomie und Spieltheorie aktuelle Forschungsergebnisse vor und initiierte neue gemeinsame Forschungsprojekte. Am 2. April hielt er ein Forschungsseminar zum Thema Belief-Efficiency in Markets.

Weitere Aktivitäten, darunter gemeinsame Workshops sowie eine fortgesetzte Zusammenarbeit zwischen Fakultätsmitgliedern und Nachwuchswissenschaftlern, sind geplant.

Bingbing Li in Warwick

Center for Mathematical Economics — Wed, 1 Apr 2026 00:00:00 +0200

Bingbing Li is beginning her four-month research stay at University of Warwick, hosted by Francesco Squintani. Her work will focus on authority allocation and optimal delegation.

Bingbing Li beginnt ihren viermonatigen Forschungsaufenthalt an der Universität Warwick unter der Betreuung von Francesco Squintani. Der Schwerpunkt ihrer Arbeit liegt auf der Verteilung von Befugnissen und der optimalen Delegation.

Asimamaw Belete at the 18th Workshop on Labour Economics

Center for Mathematical Economics — Mon, 30 Mar 2026 12:22:19 +0200

Asimamaw Belete attended the 18th Workshop on Labour Economics at Trier University from March 26 to 27, organised by the The Institute for Labour Law and Industrial Relations in the European Union (IAAEU).
He gave a talk on The Geography of Job Search, Social Networks and Match Quality.

Asimamaw Belete nahm vom 26. bis 27. März am 18th Workshop on Labour Economics an der Universität Trier teil, der vom Institut für Arbeitsrecht und Arbeitsbeziehungen in der Europäischen Union (IAAEU) organisiert wurde.
Dabei gab er eine Präsentation über The Geography of Job Search, Social Networks and Match Quality.

Maren Schmeck, Benjamin bitterlich and Sven Hellbusch at the 4th Climate, Energy and ESG Workshop in Essen

Center for Mathematical Economics — Thu, 26 Mar 2026 19:19:10 +0100

Maren Schmeck, Benjamin Bitterlich and Sven Hellbusch attended the 4th Climate, Energy and ESG Workshop in Essen from March 25 to 26, organised by the House of Energy, Climate and Finance (HECF).
Benjamin presented a poster on his joint work with Maren and Fred Espen Benth on Hedging Power Purchase Agreements, and Sven also took part in the PhD spring school on March 24.

Maren Schmeck, Benjamin Bitterlich und Sven Hellbusch nahmen vom 25. bis 26. März am 4th Climate, Energy and ESG Workshop in Essen teil, der vom House of Energy, Climate and Finance (HECF) organisiert wurde.
Benjamin präsentierte ein Poster über Hedging Power Purchase Agreements, welches ein gemeinsames Projekt mit Maren und Fred Espen Benth ist, und Sven nahm zusätzlich noch an der PhD Spring School am 24. März teil.

Frank Riedel in Kyoto

Center for Mathematical Economics — Thu, 26 Mar 2026 14:49:10 +0100

Frank Riedel visits the Institute of Economic Research at Kyoto University from March 31 until April 3 2026. On April 2, he will give a research seminar on Belief-Efficiency in Markets.

Frank Riedel ist vom 31. März bis 3. April 2026 zu Besuch am Institute of Economic Research an der Kyoto Universität. Dabei gibt er am 2. März ein Forschungsseminar über sein Paper Belief-Efficiency in Markets.

CUDE-BiGSEM International Block Course by Fausto Gozzi

Center for Mathematical Economics — Mon, 23 Mar 2026 00:00:00 +0100

The CUDE-BiGSEM International Block Course took place at the IMW from March 23 to 31, 2026, and was taught by Professor Fausto Gozzi.
The course, titled Introduction to Optimal Control and Games in Finite and Infinite Dimensions Motivated by Economics and Finance, provided participants with insights into advanced methods at the intersection of control theory, game theory, and their applications in economics and finance.
Lectures were held on March 23, 24, 30, and 31 from 9:00 to 11:00 am.

Der CUDE-BiGSEM International Block Course fand am IMW vom 23. bis 31. März 2026 statt und wurde von Professor Fausto Gozzi geleitet.
Das Thema des Kurses lautet Introduction to Optimal Control and Games in Finite and Infinite Dimensions Motivated by Economics and Finance.
Die Vorlesungen fanden am 23., 24., 30. und 31. März jeweils von 9:00 bis 11:00 Uhr statt.

Maren Schmeck, Jonathan Klinge und Price Osei at the Future Actuarial Research Workshop in Reisensburg

Center for Mathematical Economics — Fri, 20 Mar 2026 00:00:00 +0100

Maren Schmeck, Jonathan Klinge and Prince Osei took part at the Future Actuarial Research Workshop in Reisensburg from March 18 to 20, organized by the German Society for Insurance and Financial Mathematics (DGVFM).
Maren was part of the senior researchers team who provided valuable feedback on junior researchers’ presentations. Jonathan held a presentation on Optimal Protective Investment in the Classical Risk Model while Prince presented his work on Portfolio Selection under Ambiguity in Volatility.

Maren Schmeck, Jonathan Klinge und Prince Osei nahmen am Future Actuarial Research Workshop in Reisensburg vom 18. bis 20. März teil, welches von der Deutschen Gesellschaft für Versicherungs- und Finanzmathematik (DGVFM) veranstaltet wurde.
Maren war dabei Teil des Professoren-Teams, welches Feedback an die jungen Forschenden gab. Jonathan hielt eine Präsentation über Optimal Protective Investment in the Classical Risk Model und Prince präsentierte sein Paper Portfolio Selection under Ambiguity in Volatility.

New article by Giorgio Ferrari and Frank Riedel

Center for Mathematical Economics — Mon, 16 Mar 2026 00:00:00 +0100

The article "Variational Inequalities and Smooth-fit Principle for Singular Stochastic Control Problems in Hilbert Spaces" by S. Federico, G. Ferrari, F. Riedel and M. Röckner has been accepted for publication in the The Annals of Applied Probability.

Der Artikel "Variational Inequalities and Smooth-fit Principle for Singular Stochastic Control Problems in Hilbert Spaces" von S. Federico, G. Ferrari, F. Riedel und M. Röckner ist zur Veröffentlichung in The Annals of Applied Probability angenommen worden.

Giorgio Ferrari in Hong Kong

Center for Mathematical Economics — Mon, 16 Mar 2026 00:00:00 +0100

Giorgio Ferrari is visiting the Hong Kong Polytechnic University from 16 to 20 March. On 19 March, he gives the talk “Singular Mean-Field Control via Singular Mean-Field Games”.

Giorgio Ferrari ist vom 16. bis 20. März zu Besuch an der Polytechnischen Universität Hongkong zu Besuch. Am 19. März hält er einen Vortrag mit dem Titel „Singular Mean-Field Control via Singular Mean-Field Games“.

New article by Giorgio Ferrari and Ioannis Tzouanas

Center for Mathematical Economics — Mon, 16 Mar 2026 00:00:00 +0100

The article "Ergodic Mean-field Games of Singular Control with Regime-Switching" by J. Dianetti, G. Ferrari and I. Tzouanas has been accepted for publication in the SIAM Journal on Control and Optimization.

Der Artikel "Ergodic Mean-field Games of Singular Control with Regime-Switching" von J. Dianetti, G. Ferrari und I. Tzouanas ist zur Veröffentlichung im SIAM Journal on Control and Optimization angenommen worden.

New article by Giorgio Ferrari

Center for Mathematical Economics — Mon, 16 Mar 2026 00:00:00 +0100

The article "Regulation in a Mean-Field Investment Game with Climate Damage" by R. Aid, S. Federico, G. Ferrari and N. Rodosthenous has been accepted for publication in the journal Mathematical Finance.

Der Artikel "Regulation in a Mean-Field Investment Game with Climate Damage" von R. Aid, S. Federico, G. Ferrari und N. Rodosthenous ist zur Veröffentlichung im Journal Mathematical Finance angenommen worden.

Anna Pajola at the Women in Mathematical Finance Workshop in Rome

Center for Mathematical Economics — Thu, 12 Feb 2026 00:00:00 +0100

Anna Pajola is participating in the Women in Mathematical Finance Workshop at the Sapienza University of Rome from February 12^th to 13^th. She presents her paper Existence of strong randomized equilibria in mean-field games of optimal stopping with common noise.

Anna Pajola nimmt am Women in Mathematical Finance Workshop in Rom an der Universität La Sapienza am 12. und 13. February teil. Dabei präsentiert sie ihr Paper Existence of strong randomized equilibria in mean-field games of optimal stopping with common noise.

Maren Schmeck and Benjamin Bitterlich at Energy Finance Italia in Padua

Center for Mathematical Economics — Mon, 2 Feb 2026 16:05:10 +0100

Maren Schmeck, Benjamin Bitterlich and our IMW alumna Annika Kemper Hoepfner are participating at the Energy Finance Italia 11 workshop in Padua from 2 to 4 February. Maren presents Empirical Evidence of the Market Price of Risk for Delivery Periods and Benjamin Hedging Power Purchase Agreements: A Cointegration Model.

Maren Schmeck, Benjamin Bitterlich und unsere IMW Alumna Annika Kemper Hoepfner nehmen am Energy Finance Italia 11 Workshop in Padua am 02.-04. Februar teil. Maren präsentiert dabei Empirical Evidence of the Market Price of Risk for Delivery Periods und Benjamin Hedging Power Purchase Agreements: A Cointegration Model.

Luoyuan Gan in Montreal

Center for Mathematical Economics — Thu, 29 Jan 2026 00:00:00 +0100

Luoyuan Gan is beginning his four-month research stay at HEC Montréal. He will be hosted by Georges Zaccour in the Group for Research in Decision Analysis (GERAD).

Luoyuan Gan beginnt heute seinen viermonatigen Forschungsaufenthalt an der HEC Montréal. Er wird in der Zeit von Georges Zaccour in der Group for Research in Decision Analysis (GERAD) betreut.