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Using a combination of analytical and numerical tools, we demonstrate that the model can produce a surprisingly large number of coexisting attractors with intricate basins of attraction. Some attractors result in the comovement of stock prices, while others lead to countercyclical dynamics. Under the influence of exogenous noise, stock prices alternate between these attractors, displaying synchronous, independent, and asynchronous patterns, and fluctuating around different price levels. Importantly, however, such dynamics may also emerge in our deterministic model.<\/jats:p>","DOI":"10.1142\/s0218127425501895","type":"journal-article","created":{"date-parts":[[2025,10,13]],"date-time":"2025-10-13T06:03:46Z","timestamp":1760335426000},"source":"Crossref","is-referenced-by-count":1,"title":["A Stock Market Model with Chartists, Fundamentalists, and Index Traders: Nonlinearities and Coexisting Attractors"],"prefix":"10.1142","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-6143-2038","authenticated-orcid":false,"given":"Sarah","family":"Mignot","sequence":"first","affiliation":[{"name":"Department of Economics, University of Bamberg, Bamberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1666-4103","authenticated-orcid":false,"given":"Frank","family":"Westerhoff","sequence":"additional","affiliation":[{"name":"Department of Economics, University of Bamberg, Bamberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2025,10,11]]},"reference":[{"key":"S0218127425501895BIB001","doi-asserted-by":"publisher","DOI":"10.1016\/j.jedc.2012.03.015"},{"key":"S0218127425501895BIB002","doi-asserted-by":"publisher","DOI":"10.1257\/jel.20221319"},{"key":"S0218127425501895BIB003","doi-asserted-by":"publisher","DOI":"10.1016\/S0304-405X(03)00064-3"},{"key":"S0218127425501895BIB004","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-1889(98)00011-6"},{"key":"S0218127425501895BIB005","doi-asserted-by":"publisher","DOI":"10.1016\/j.jedc.2014.09.041"},{"key":"S0218127425501895BIB006","doi-asserted-by":"publisher","DOI":"10.1016\/S0167-2789(98)00198-5"},{"key":"S0218127425501895BIB007","doi-asserted-by":"publisher","DOI":"10.1016\/S0375-9601(01)00370-X"},{"key":"S0218127425501895BIB008","doi-asserted-by":"crossref","unstructured":"Chen, C., Bao, H., Zhang, Y., Yu, Y., Zhao, S., Yang, Y. & Chen, L. 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