Please click on the names to find out more about the members of the BIGSEM.

Prof. em. Volker Böhm, Ph.D.

Prof. Volker Böhm, obtained a Ph.D. in Economics from the University of California in Berkeley in 1972. Before joining the faculty of Bielefeld University in 1994, he taught at CORE, Université Catholique de Louvain, at Université Libre de Bruxelles, and at the University of Mannheim. Prof. Böhm has held visiting positions at various international universities and is associate editor of several scientific journals.

Research Interests: Economic Theory in the areas Microeconomics and Macroeconomics, in particular Stochastic Dynamic Economic Theory with applications mainly in Business Cycle Theory, Growth Theory, and Financial Market Theory

Prof. Böhm's Homepage


Prof. Dr. Christiane Clemens

Prof. Dr. Christiane Clemens held assistant and associate professor positions at the Universities of Hannover, Magdeburg and Hamburg and served as visiting professor at the Swiss Federal Institute of Technology, Zurich (ETH) and visiting associate professor at the University of Washington, Seattle. She was appointed to the Chair of Quantitative Macroeconomics at Bielefeld University effective from April, 2010.

Research Interests: Growth theory, income and wealth distribution, public economics, international economics, political economics, economics of uncertainty and learning

Prof. Clemens' Homepage


Prof. Dr. Herbert Dawid (BiGSEM chairman)

Prof. Dr. Herbert Dawid obtained his doctoral degree at the Vienna University of Technology. He held assistant and associate professor positions at the University of Vienna and was an associate professor at the University of Southern California in Los Angeles before coming to Bielefeld in 2003. Prof. Dawid has published numerous articles in internationally renowned scientific journals, has obtained several research awards and is currently editor of the Journal of Economic Dynamics and Control and on the editorial board of several other international journals.

Research Interests: Dynamic Industrial Organization, Evolutionary Economics, Agent-based Computational Economics

Prof. Dawid's Homepage


Prof. Dr. Bernhard Eckwert

After completing his doctoral studies in 1984, Prof. Dr. Bernhard Eckwert was part of the economics faculty of the University of Augsburg for several years. From 1993 until he joined Bielefeld University in 2002, he held a position as professor at the Technical University of Chemnitz. Prof. Eckwert is a frequent visitor to various international universities and research institutes. In recent years, his research activities have focused on the economics of information, risk sharing, and growth.

Research Interests: Economics of Information, Financial Economics, Endogenous Growth

Prof. Eckwert's Homepage


Prof. Dr. Alfred Greiner

In 1993, Prof. Dr. Alfred Greiner successfully completed his doctoral studies with a dissertation on a topic in innovation economics. For several years, he was a faculty member of the University of Augsburg and visiting research fellow at the New School for Social Research, New York. Since 2000, Prof. Greiner has held a position as professor for economic policy at Bielefeld University. He is a member of the International Institute of Public Finance.

Research Interests: Public Finance, Macroeconomics, Optimal Control, Economic Dynamics, Optimal Growth

Prof. Greiner's Homepage


J-Prof. Dr. Tim Hellmann

 Academic curriculum vitae

  • 2002 Pre-Diploma in Mathematics and Economics (BA), Bielefeld University
  • 2004 Master of Arts in Economics, University of Georgia, Athens (USA)
  • 2007 Diploma in Mathematics and Economics (MA), Bielefeld University
  • 2010 PhD in Economics (Dr.rer.pol.), Bielefeld University
  • since 2010 Assistant Professor (J.-Prof.), Bielefeld University

Research Interests: Game Theory, Network Formation, Evolution and Learning in Games

J-Prof Hellmann's Homepage


Dr. Sander van der Hoog

Research Interests: Economics, Evolutionary and Dynamic Game Theory, Nonlinear Economic Dynamics                                                

Prof. Dr. Frank Riedel

Prof. Riedel obtained a Ph.D. at Humboldt University in 1998. The doctoral thesis won the Humboldt prize. Afterwards, he was Assistant Professor at Humboldt University until 2002, when he went to UC Berkeley as a Postdoc. He then was Feodor-Lynen-Fellow at Stanford University before becoming Professor at Bonn University. He joined the Center for  Mathematical Economics in 2007. His coauthors include Mathematicians, Biologists, and Linguists. Prof. Riedel has published articles in renowned journals in Economics, Mathematics, and Biology.

Research Interests: Mathematical Finance, General Equilibrium Theory, Evolutionary Game Theory, Applications in Biology and Linguistics

Prof. Riedel's Homepage


Prof. em. Dr. Joachim Rosenmüller

Prof. Dr. Joachim Rosenmüller has been a member of the Center for Mathematical Economics since 1978. He was the institute's director from 1984 to 2002. Before being appointed full professor at the University of Karlsruhe in 1972, Prof. Rosenmüller was assistant professor at the University of Aarhus, the University of Minnesota, and the University of British Columbia. He is associate editor of numerous international scientific journals and author of several books on game theory.

Research Interests: Game Theory, Decision Theory, General Equilibrium, Bargaining, Stochastic Optimization, Stochastic Dynamic Programming, Algorithms and Recursive Procedures, Implementation, Non-additive Set Functions, Probability and Uncertainty, Formel Epistemology in the Economic Context

Prof. Rosenmüllers's Homepage


J-Prof. Dr. Jan-Henrik Steg

 Academic curriculum vitae

  • 2005 Diploma in Business Engineering and Economics, Karlsruhe Institute of Technology, following studies in Karlsruhe and Lausanne, CH
  • 2010 PhD in Economics, Bielefeld University, following PhD studies in Bielefeld and at University of Paris 1)
  • 2010 Postdoctoral Researcher, Center for Mathematical Economics, Bielefeld University
  • 2011 Assistant Professor, Center for Mathematical Economics, Bielefeld University

Research Interests: Dynamic Game Theory, Strategic Investment under Uncertainty, Stochastic Optimal Control


Prof. em. Dr. Walter Trockel


Prof. Dr. Walter Trockel earned his doctoral degree at the University of Bonn. After stays as visiting scholar in Berkeley in 1973/74 and in spring 1981 he moved to Bielefeld University in 1984 where he held the former chair of Reinhard Selten at the Center for Mathematical Economics (IMW) from 1985 till 2012. He had acted as the director of the IMW from 2002 to 2009.Trockel is managing editor of the Springer Lecture Notes in Economics and Mathematical Systems and is and has been associate editor of several international journals. He is a scientific member of the International Advisory Board of the School of Business and Economics of Maastricht University, member of the Board of the Society of Economic Design and of Shandong University´s Research Center of Games and Economic Behavior (RCGEB). Istanbul Bilgi University Trockel, who has published numerous articles in renowned journals of Economics and Mathematics, is an Economic Theory Fellow ,a Fellow of the Murat Sertel Center for Advanced Economic Studies and acts presently as a part time Full Professor at Istanbul Bilgi University.

Research Interests: Mechanism Design, Game Theory, General Equilibrium Theory, Decision Theory, Social Choice and Welfare

Prof. Trockel's Homepage


J-Prof. Dr. Hale Utar

J-Prof. Dr. Utar obtained her PhD in economics from Pennsylvania State University (Penn State) in 2006.  Before coming to the University of Bielefeld, she worked as an Assistant Professor at the Department of Economics at University of Colorado, Boulder. Her fields of specialization are International Trade and Industrial Organization.

Research Interests: Microeconomic Impacts of Globalization, International Competition, Trade Impact on Firms and Labor, Trade and Innovation, Market Openness, Technology and Knowledge Transfer between Firms in the Global Markets, Productivity

J-Prof. Dr. Utar’s homepage


Prof. Dr. Gerald Willmann

Gerald Willmann obtained a PhD in economics from Stanford University in 2000.  Before coming to the University of Bielefeld, he was junior faculty at the University of Kiel and associate professor at the Katholieke Universiteit Leuven.

Research Interests: International Trade, Political Economy, and Economic Integration.

Prof. Willmanns's Homepage


J-Prof. Dr. Anna Zaharieva

Dr. Anna Zaharieva obtained her doctorate in Quantitative Economics at the University of Konstanz in the year 2010. Earlier in 2008 she had completed her doctoral studies in Mathematical Finance at the Russian Plekhanov Academy of Economics. In the year 2010 she was appointed as a postdoctoral fellow at the University of Bielefeld.

Research Interests: labour economics, search theory, labour econometrics, contract theory





Please click on the names to find out more about the members of the BIGSEM.

Prof. Dr. Matthias Amen

Prof. Dr. Matthias Amen worked in industry before starting his academic carrier. He was member of universities in Paderborn, Passau, Berne (Switzerland), Duisburg-Essen and Eichstätt-Ingolstadt. He obtained his doctoral degree at the University of Passau with a dissertation on combinatorial optimization in cost-oriented assembly line balancing. For several years he worked parallel at university and at the transaction advisory services of one of the big international auditing companies where he specialized in restructuring and valuation. He attained the habilitation at University of Duisburg-Essen with a thesis on simulation analysis of international accounting for pensions. Since 2008 he is professor for quantitative accounting and financial reporting at Bielefeld University.

Research Interests: Complex topics in Financial Reporting, Valuation & Business Analysis, Quantitative Methods in Managerial & Financial Accounting, Planning & Operations Management

Prof. Dr. Thomas Braun

Prof. Dr. Thomas Braun acquired a deep knowledge in economics and business administration by majoring in both subjects. He was a member of the Universities of Mainz, Bonn, Frankfurt, and Passau and completed his dissertation on risk management with options and futures at the University of Passau in 1989. In 1997, Prof. Braun was appointed professor at Bielefeld University. His teaching focuses mainly on lectures and seminars in finance.

Research Interests: Asset Management, Risk Management, Information-Economic Aspects of Financing Decisions, Capital Market Theory, Real Options.

Prof. Dr. Reinhold Decker

Prof. Dr. Reinhold Decker majored in industrial engineering with specializations in operations research and computer science. He completed his doctoral studies with a thesis on the "Analysis and simulation of buying behavior in consumer goods markets" at the University of Karlsruhe in 1993. Prof. Decker was a faculty member in Karlsruhe and visiting professor at the University of Vienna before joining the Department of Economics and Business Administration in 1997. He is actively involved in several research and technology transfer activities at Bielefeld University.

Research Interests: Modelling of Purchases and Consumer Behaviour, Quantitative Methods of Marketing Research, Computer-Based Support of Decision-Making in Marketing, Market Research and Retail Trade, Neural Networks in Market Research, Competition Analysis by Means of Rank-Coded Data, Data Mining in Marketing


Prof. Dr. Hermann Jahnke

Prior to joining the Business Administration and Economics Department at Bielefeld University in 1995, Hermann Jahnke was visiting professor at the University of the German Federal Armed Forces in Hamburg and professor for Business Administration at Cologne University. He completed his Habilitation in Operations Management at the Institute for Logistics & Transport and his PhD at the Institute for Statistics and Econometrics, both at Hamburg University. He has published a number of articles in international journals including Decision Sciences, the European Journal of Operational Research, Computers & OR, the International Journal of Production Economics, and the Journal of Mathematical Modelling and Algorithms.

Research Interests: Managerial information and accounting instruments; decision theory; management of industrial services; supply chain management; Lotsizing and Scheduling Problems.

Prof. Dr. Rolf König

Prof. Dr. Rolf König majored in mathematics and computer science and completed his doctoral studies in 1989 at the University of Bonn. He was a faculty member at the University of Augsburg and appointed professor at Bielefeld University in 1995. Prof. König is the author of numerous articles and several books.

Research Interests: Capital Market Theory, Taxation of Companies, Tax and Capital Market Values of Companies, Taxation of Gains from Shares, Taxes and Investments

Prof. Dr. Christian Stummer

Prof. Dr. Christian Stummer received his doctoral degree from the University of Vienna where he held the position of an associate professor before joining Bielefeld University in 2010. He also served as the head of a research group at the Electronic Commerce Competence Center in Vienna and made professional experiences as a visiting professor at the University of Texas at San Antonio. His research has been widely published in various internationally renowned scientific journals mostly from the fields of Business Administration, Information Technology, and/or Operations Research.

Research Interests: Innovation and Technology Management, Multiobjective Portfolio Analysis, Interactive Decision Support, Agent-based Simulation of Diffusion Processes.

Prof. Stummer's Homepage




Quantitative Methods

Please click on the names to find out more about the members of the BIGSEM.

Prof.em. Dr. Joachim Frohn

Prof. Dr. Joachim Frohn was professor of Econometrics at FU Berlin; he joined the faculty in Bielefeld as professor of Statistics and Econometrics in 1974. Prof. Frohn was President of the German Statistical Society and Dean and President of the China-Europe-International-Business-School (CEIBS) in Shanghai. He is a member of the European Academy of Sciences and Arts.

Research Interests: Applied and Theoretical Econometrics, Disaggregated Econometric Models, Empirical Economic Research, Microeconometrics

Prof. Frohn's Homepage

Prof. Dr. Dietmar Bauer

Prof. Dr. Dietmar Bauer obtained his PhD in Applied Mathematics from the TU Wien, Austria, in 1998. After several postdoc positions (including Newcastle University, Australia, Linköping, Sweden, and Yale, USA) he returned to the TU Wien and received the Habilitation in econometrics. In 2005 he joined the Austrian Institute of Technology to work as a statistician in transportation science. Since 2014 he holds the chair in econometrics at Bielefeld university.

Research Interests: Time series econometrics; Discrete choice modeling; transportation science.




Michael Günther

successfully defended his thesis on "Theory and Application of Renegotiation in Repeated Games". Congratulations!

Michael Günther will defend his thesis

BiGSEM Student, Michael Günther, will defend his thesis on Tuesday, September 19. It will take place at 5 pm in room V10-122.

BiGSEM happily welcomes two new BiGSEM members:

Ms. Fabienne Dascher 
Mr. Jasper Hepp

and three new doctoral students of the EXIDE program are starting their doctoral work at Bielefeld University:

Mr. Erdenebulgan Damdinsuren;
Ms. Mariam Nanumyan;
Ms. Roberta Terranova

We wish our new students a good start and much success with their academic program!

Sevak Alaverdyan has been invited to the 6th Lindau Meeting on Economic Sciences

The Council for the Lindau Nobel Laureate Meetings has selected Sevak Alaverdyan to participate in the 6th Lindau Meeting on Economic Sciences to be held from 22 - 26 August 2017 in Lindau, Germany. Up to 20 Nobel Laureates and approximately 400 highly-talented young economists  from all over the world will participate in this meeting. Sevak Alaverdyan was selected among 1000 nominated students. Congratulations!

Benoit Decerf has a forthcoming publication in The Journal of Public Economics

The EDEEM graduate Benoit Decerf has a forthcoming publication in The Journal of Public Economics "Why not consider that being absolutely poor is worse than being only relatively poor?", which is a part of his PhD dissertation.

Gregor Böhl is awarded the "SCE 2017 Graduate Student Paper Contest"

The EDEEM student Gregor Böhl has been awarded the "Graduate Student Paper Contest 2017" of the Society for Computational Economics (SCE). The awards have been presented during the international conference "Computing in Economics and Finance" in New York City on Friday, June 30.

We are very happy to congratulate Gregor Böhl who is awarded the "Graduate Student Paper Contest 2017" for his paper "Monetary Policy and Speculative Stock Markets".

New Position at Goethe University Frankfurt

We are glad to announce that Gregor Böhl has landed a job as a post doc at the Goethe University in Frankfurt from 01.06.2017. We wish him all the best and success for his professional and private future.

New Doctoral Representative

The BiGSEM-students have hold their vote on the new doctoral representative. Erdenebulgan Damdinsuren got elected and is from now on acting as a conduit between the doctoral students and the program administration. Congratulations!


Ly Dai Hung

Ly Dai Hung successfully defended his thesis on "Productivity Growth and International Capital Flows in an integrated World".


Ly Dai Hung will defend his thesis

EDEEM student, Hung Ly Dai, will defend his Phd thesis on March 9. It will take place at 1 pm in V8-119.

Jochen Manegold

Jochen Manegold successfully defended his thesis on "Competition in Markets with Intermediaries".


Dissertation Prize Award

Every year about 260 doctoral students complete successfully their doctoral degree at Bielefeld University. According to the recommendations of the faculties, the "Universitätsgesellschaft Bielefeld" then nominates graduates with outstanding dissertations for its dissertation prize.

This year we are happy to congratulate Dr. Tobias Hellmann who is awarded the dissertation prize 2016 for his Thesis "Essays on the Foster-Hart Measure of Riskiness and Ambiguity in Real Options Games".

Congratulations Tobias!

Nikoleta van Welbergen

Nikoleta van Welbergen successfully defended her thesis on "Information Uncertainty in Auction Theory".


Lan Sun

Lan Sun successfully defended her thesis on "Essays on Two-Player Games with Asymmetric Information".


Job Opening: 15 doctoral fellowships

Marie Skłodowska-Curie Innovative Training Network: Expectations and Social Influence Dynamics in Economics (ExSIDE)

ExSIDE is looking for 15 highly motivated doctoral fellows to engage in cutting edge interdisciplinary research combined with a structured curriculum of training activities. The agenda of ExSIDE is to improve our understanding of the role of expectation formation and social influence for economic dynamics and for the optimal design of economic policy. Doctoral fellows will engage in network-wide training activities and carry out research work at two (or three) out of eight European partner universities. Selected candidates will enter a 36 month work contract with the recruiting university of their project.

For more information about ExSIDE and the application procedure see


Deadline for Application: January 15, 2017

New ZiF Research Group

Anna Zaharieva together with two colleagues Ursula Mense-Petermann (Faculty of Sociology) and Thomas Welskopp (Faculty of History) successfully applied for an interdisciplinary ZiF Research Group “In Search of the Global Labour Market”. During the ZiF residence period between October 2017 and July 2018 more than 25 research fellows from leading German and foreign Universities will visit Bielefeld in order to join their effort in analyzing labour market globalization tendencies, internationalization patterns and worker mobility flows across the globe.
More information will be frequently updated over here

Defense: Lan Sun and Nikoleta van Welbergen

BiGSEM students Lan Sun and Nikoleta van Welbergen will defend their theses on December 2.

Lan Sun: 10 am in V10-122
Nikoleta van Welbergen: 2 pm in U3-140

New BiGSEM Visiting Student

Francesca Grassetti from University of Macerata (IT) is taking part in BiGSEM as a visiting student in the time from 01/11/2016 to 31/01/2017. Her research interests are mainly on nonlinear dynamics applied to economic growth theory.



Philipp Külpmann

Philipp Külpmann successfully defended his thesis on "Essays on Teamwork".


Philipp Külpmann will defend his thesis.

BiGSEM student Philipp Külpmann will defend his Phd thesis on October 17th. It will take place at 11 am in V10-122.

New BiGSEM members

BiGSEM happily welcomes seven new BiGSEM members:

Mr Erdenebulgan Damdinsuren
Mr Simon Hoof
Ms Kerstin Hötte
Mr Victor Zapata Garcia

Three of them are starting their doctoral work in the EDEEM program at Bielefeld University:

Mr Alessandro Basurto
Mr Zhaojun Xing

Furthermore, two second year EDEEM doctoral students:

Ms. Madhuri Agrarwal
Mr Quentin Couanau
Mr. Ilya Eryzhenskly

are now doing their research in BiGSEM during for the academic year 2016/17

We wish our new students a good start and much success with their academic program!