Spin models as microfoundation of macroscopic financial market models
AbstractMacroscopic price evolution models are commonly used for investment strategies. There are first promising achievements in defining microscopic agent based models for the same purpose. Microscopic models allow a deeper understanding of mechanisms in the market than the purely phenomenological macroscopic models, and thus bear the chance for better models for market regulation. We exemplify this strategy in a case study, deducing a macroscopic Langevin equation from a microscopic spin market model closely related to the Ising model. The interplay of the microscopic and the macroscopic view allows for a better understanding of the microscopic model, as well, and may guide the construction of agent based market models as basis of macroscopic price models.
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Bibliographic InfoPaper provided by arXiv.org in its series Papers with number 1103.5345.
Date of creation: Mar 2011
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Web page: http://arxiv.org/
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