[AG Guhr] [Uni Duisburg-Essen]

ECONOPHYSICS


Led by Dr. Rudi Schäfer, the research group "Econophysics" is focusing on statistical analysis of financial data and economic modelling.

Research topics

Our current research topics include:

Staff

Dr. Rudi Schäfer

Research Group Leader

Room:    MG 331
Phone:    + 49 (0)203 379 4734
Email:   

Dr. Sachiko Oshima

Postdoc

Room:    MG 331
Phone:    + 49 (0)203 379 4734
Email:   

Thilo Schmitt

PhD student

Room:    MG 323
Phone:    + 49 (0)203 379 4729
Email:   

Desislava Chetalova

PhD student

Room:    MG 362
Phone:    + 49 (0)203 379 4737
Email:   

Yuriy Stepanov

PhD student

Room:    MG 333
Phone:    + 49 (0)203 379 4733
Email:   

Lukas Gathmann

Master student

Room:    MG 330
Phone:    + 49 (0)203 379 4727
Email:   

Peter Raiser

Master student

Room:    MG 323
Phone:    + 49 (0)203 379 4729
Email:   

Marcel Wollschläger

Bachelor student

Email:   

Alexander Becker

Diplom (2012)

Email:   

Frederik Meudt

Bachelor (2012)

Email:   

Daniel Wagner

Bachelor (2012)

Email:   

Alumni

Stefan Hindel

Email:   

Alexander Koivusalo

Externer Mitarbeiter

Danske Capital
Copenhagen, Denmark
Email:   

Evguenia Lioudko

Email:   

Dr. Michael C. Münnix

Target Partners GmbH, München
Email:   

Publications

T.A. Schmitt, D. Chetalova, R. Schäfer and T. Guhr
Non-Stationarity in Financial Time Series and Generic Features
preprint: arXiv:1304.5130
Vinayak, R. Schäfer and T.H. Seligman
Emerging spectra of singular correlation matrices under small power-map deformations
preprint: arXiv:1304.4982
A.F.R. Koivusalo and R. Schäfer
Calibration of structural and reduced-form recovery models
Journal of Credit Risk 8(4), 31-51 (2012) ,    preprint: arXiv:1102.4864
T.A. Schmitt, R. Schäfer, M.C. Münnix and T. Guhr
Microscopic understanding of heavy-tailed return distributions in an agent-based model
Europhysics Letters 100, 38005 (2012) ,    preprint: arXiv:1207.2946
R. Schäfer and A.F.R. Koivusalo
Dependence of defaults and recoveries in structural credit risk models
Economic Modelling 30, 1-9 (2013) ,    preprint: arXiv:1102.3150
M.C. Münnix, T. Shimada, R. Schäfer, F. Leyvraz, T.H. Seligman, T. Guhr and H.E. Stanley
Identifying States of a Financial Market
Scientific Reports 2 : 644 (2012) ,    preprint: arXiv:1202.1623
R. Schäfer, A.F.R. Koivusalo and T. Guhr
Credit Portfolio Risk and Diversification
invited contribution in:
Credit Securities and Derivatives - Challenges for the Global Markets
D. Rösch and H. Scheule (Eds.)
John Wiley & Sons, New York (April, 2013)
ISBN: 978-1119963967
A. Becker, A.F.R. Koivusalo and R. Schäfer
Empirical Evidence for the Structural Recovery Model
preprint on DefaultRisk.com
M.C. Münnix, R. Schäfer and O. Grothe
Estimating correlation and covariance matrices by weighting of market similarity
Quantitative Finance, iFirst, 1 - 9 (2011) ,    preprint: arXiv:1006.5847
M.C. Münnix and R. Schäfer
A Copula Approach on the Dynamics of Statistical Dependencies in the US Stock Market
Physica A 390, 4251 (2011) ,    preprint: arXiv:1102.1099
M.C. Münnix, R. Schäfer and T. Guhr
A Random Matrix Approach to Credit Risk
preprint: arXiv:1102.3900
M.C. Münnix, R. Schäfer and T. Guhr
Statistical causes for the Epps effect in microstructure noise
International Journal of Theoretical and Applied Finance 14, 1231-1246 (2011)
preprint: arXiv:1009.6157
M.C. Münnix, R. Schäfer and T. Guhr
Impact of the tick-size on financial returns and correlations
Physica A 389, 4828 (2010) ,    preprint: arXiv:1001.5124
R. Schäfer and T. Guhr
Local normalization: Uncovering correlations in non-stationary financial time series
Physica A 389, 3856 (2010)
M.C. Münnix, R. Schäfer and T. Guhr
Compensating asynchrony effects in the calculation of financial correlations
Physica A 389, 767 (2010) ,    preprint: arXiv:0910.2909
R. Schäfer, N. F. Nilsson and T. Guhr
Power mapping with dynamical adjustment for improved portfolio optimization
Quantitative Finance 10, 107 - 119 (2010)
R. Schäfer, M. Sjölin, A. Sundin, M. Wolanski and T. Guhr
Credit risk - A structural model with jumps and correlations
Physica A 383, 533 (2007) ,    preprint: arXiv:0707.3478