Institute of Information Theory and Automation

Publication details

Herding, minority game, market clearing and efficient markets in a simple spin model framework

Journal Article

Krištoufek Ladislav, Vošvrda Miloslav

serial: Communications in Nonlinear Science and Numerical Simulation vol.54, 1 (2017), p. 148-155

project(s): GBP402/12/G097, GA ČR, FP7-SSH-612955,

keywords: Ising model, Efficient market hypothesis, Monte Carlo simulation

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abstract (eng):

We present a novel approach towards the financial Ising model. Most studies utilize the model to find settings which generate closely mimicking the financial stylized facts such a fat tails, volatility clustering and persistence, and others. Working with the Ising model, we are able to present nicely interpretable results as the model is based on only two parameters. We show that in fact market frictions (to a certain level) and herding behavior of the market participants do not go against market efficiency but what is more, they are needed for the markets to be efficient.


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Last modification: 21.12.2012
Institute of Information Theory and Automation