https://doi.org/10.1140/epjb/e2015-50019-9
Regular Article
Analysis of log-periodic power law singularity patterns in time series related to credit risk
1
Institute of Business Administration, University of Muenster
Leonardo-Campus 1, 48149
Muenster,
Germany
2
Department of Management, Technology and Economics,
ETH Zurich Scheuchzerstrasse 7,
8092
Zurich,
Switzerland
a e-mail: j.w@uni-muenster.de
Received:
9
January
2014
Received in final form:
5
March
2015
Published online:
13
April
2015
The log-periodic (super-exponential) power law singularity (LPPLS) has become a promising tool for predicting extreme behavior of self-organizing systems in natural sciences and finance. Some researchers have recently proposed to employ the LPPLS on credit risk markets. The review article at hand summarizes four papers in this field and shows how they are linked. After structuring the research questions, we collect the corresponding answers from the four articles. This eventually gives us an overall picture of the application of the LPPLS to credit risk data. Our literature review begins with grounding the view that credit default swap (CDS) spreads are hotbeds for LPPLS patterns and it ends up with drawing attention to the recently proposed alarm index for the prediction of institutional bank runs. By presenting a new field of application for the LPPLS, the reviewed strand of literature further substantiates the LPPLS hypothesis. Moreover, the results suggest that CDS spread trajectories belong to a different universality class than, for instance, stock prices.
Key words: Statistical and Nonlinear Physics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2015