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Special cases are stochastic volatility models and models with stochastic interest rate; both must be modeled as finite-state Markov chains.<\/jats:p>","DOI":"10.1137\/070682897","type":"journal-article","created":{"date-parts":[[2009,4,15]],"date-time":"2009-04-15T18:16:16Z","timestamp":1239819376000},"page":"1353-1376","source":"Crossref","is-referenced-by-count":52,"title":["American Options in Regime-Switching Models"],"prefix":"10.1137","volume":"48","author":[{"given":"Svetlana","family":"Boyarchenko","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sergei","family":"Levendorskii","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"351","published-online":{"date-parts":[[2009,4,15]]},"reference":[{"key":"R1","doi-asserted-by":"publisher","DOI":"10.1214\/105051605000000377"},{"key":"R2","doi-asserted-by":"publisher","DOI":"10.1016\/j.spa.2003.07.005"},{"key":"R3","doi-asserted-by":"publisher","DOI":"10.1214\/aoap\/1075828052"},{"key":"R4","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-6261.1997.tb02749.x"},{"key":"R5","doi-asserted-by":"crossref","unstructured":"O. 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