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作者:Kazaz, Burak; Webster, Scott
作者单位:Syracuse University; Arizona State University; Arizona State University-Tempe
摘要:The price-setting newsvendor problem, which models the economic trade-offs associated with uncertain demand of a perishable product, is fundamental to supply chain analysis. However, in settings such as agriculture, there is significant economic risk associated with supply uncertainty. We analyze how risk aversion and the source of uncertainty-demand and/or supply-affect tractability and optimal decisions. We find that concavity of the objective function is preserved under the introduction of ...
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作者:Wang, Jue; Lee, Chi-Guhn
作者单位:University of Toronto
摘要:We study a multistate partially observable process control model with a general state transition structure. The process is initially in control and subject to Markovian deterioration that can bring it to out-of-control states. The process may continue making transitions among the out-of-control states, or even back to the in-control state until it reaches an absorbing state. We assume that at least one out-of-control state is absorbing. The objective is to minimize the expected total cost over...
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作者:Gupta, Diwakar; Mehrotra, Mili
作者单位:University of Minnesota System; University of Minnesota Twin Cities; University of Minnesota System; University of Minnesota Twin Cities
摘要:The Centers for Medicare and Medicaid Services (CMS) has introduced a bundled payments for care improvement (BPCI) initiative. Each bundle pertains to a specific medical condition, a set of linked services, and a length of time referred to as an episode of care. Proposers choose bundles, design service chains, and propose target values of quality metrics and payments per episode. Expert panels evaluate proposals based on CMS-announced relative weights, but there is no limit on the number of pr...
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作者:Shi, Yun; Cui, Xiangyu; Yao, Jing; Li, Duan
作者单位:Shanghai University; Shanghai University of Finance & Economics; Fudan University; Chinese University of Hong Kong
摘要:We formalize the reference point adaptation process by relating it to a way people perceive prior gains and losses. We then develop a dynamic trading model with reference point adaptation and loss aversion, and derive its semi-analytical solution. The derived optimal stock holding has an asymmetric V-shaped form with respect to prior outcomes, and the related sensitivities are directly determined by the sensitivities of reference point shifts with respect to the outcomes. We also find that the...
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作者:Qu, Huashuai; Ryzhov, Ilya O.; Fu, Michael C.; Ding, Zi
作者单位:University System of Maryland; University of Maryland College Park; University System of Maryland; University of Maryland College Park
摘要:We create the first computationally tractable Bayesian statistical model for learning unknown correlation structures in fully sequential simulation selection. Correlations represent similarities or differences between various design alternatives and can be exploited to extract much more information from each individual simulation. However, in most applications, the correlation structure is unknown, thus creating the additional challenge of simultaneously learning unknown mean performance value...
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作者:Izady, Navid
作者单位:Solent University; University of Southampton
摘要:Specialty clinics provide specialized care for patients referred by primary care physicians, emergency departments, or other specialists. Urgent patients must often be seen on the referral day, whereas nonurgent referrals are typically booked an appointment for the future. To deliver a balanced performance, the clinics must know how much appointment capacity is needed for achieving a reasonably quick access for nonurgent patients. To help identify the capacity that leads to the desired perform...