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dc.contributor.authorShin, Dong-Hoon
dc.description.abstractWe consider optimal selling rules for stocks and options pricing under a regime-switching model which consists of a set of geometric Brownian motions. We introduce two approaches to study the underlying problems. One approach is via viscosity solutions with numerical methods and the other is to find a closed-form solution. Finding a closed form solution is usually applicable in only limited cases. In this dissertation, we study four related topics. As the first, we consider two different ways to evaluate closed-form solutions of American put options whose underlying asset is governed by regime-switching model. Second, we use viscosity solutions to attain the optimal value function under a regime-switching model of European call options. Third, we apply the method to solve optimal selling rules to buyand- sell problem under an underlying asset governed by a mean-reverting model. As the last part of this dissertation, we consider an optimal selling rule for a large block of stocks under a regime-switching model.
dc.subjectoptimal stopping, viscosity solution, mean-reverting process, regime switching
dc.titleRegime switching models and applications in optimal selling rules and options pricing
dc.description.advisorQing Zhang
dc.description.committeeQing Zhang
dc.description.committeeShuzhou Wang
dc.description.committeeRobert Varley
dc.description.committeeJingzhi Tie
dc.description.committeeDhandapani Kannan

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