Original title:
Capital market efficiency in the Ising model environment: Local and global effects
Authors:
Krištoufek, Ladislav ; Vošvrda, Miloslav Document type: Papers Conference/Event: MME 2016. International Conference Mathematical Methods in Economics /34./, Liberec (CZ), 2016-09-06 / 2016-09-09
Year:
2016
Language:
eng Abstract:
Financial Ising model is one of the simplest agent-based models (building on a parallel between capital markets and the Ising model of ferromag- netism) mimicking the most important stylized facts of financial returns such as no serial correlation, fat tails, volatility clustering and volatility persistence on the verge of non-stationarity. We present results of Monte Carlo simulation study investigating the relationship between parameters of the model (related to herding and minority game behaviors) and crucial characteristics of capital market e ciency (with respect to the e cient market hypothesis). We find a strongly non-linear relationship between these which opens possibilities for further research. Specifically, the existence of both herding and minority game behavior of market participants are necessary for attaining the e cient market in the sense of the e cient market hypothesis.
Keywords:
efficient market hypothesis; Ising model; Monte Carlo simulation Project no.: GBP402/12/G097 (CEP), 612955 Funding provider: GA ČR Host item entry: Proceedings of the 34th International Conference Mathematical Methods in Economics MME 2016, ISBN 978-80-7494-296-9