Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2004-03-26
Physics
Condensed Matter
Disordered Systems and Neural Networks
4 pages, 6 figures
Scientific paper
10.1103/PhysRevE.70.025104
We introduce a simple extension of the minority game in which the market rewards contrarian (resp. trend-following) strategies when it is far from (resp. close to) efficiency. The model displays a smooth crossover from a regime where contrarians dominate to one where trend-followers dominate. In the intermediate phase, the stationary state is characterized by non-Gaussian features as well as by the formation of sustained trends and bubbles.
Giardina Irene
Marsili Margherita
Martino Alessandro de
Tedeschi Alessandra
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