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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：Feldman, Jacob B.; Topaloglu, Huseyin
作者单位：Cornell University
摘要：We consider assortment optimization problems when customers choose according to the nested logit model and there is a capacity constraint limiting the total capacity consumption of all products offered in all nests. When each product consumes one unit of capacity, our capacity constraint limits the cardinality of the offered assortment. For the cardinality constrained case, we develop an efficient algorithm to compute the optimal assortment. When the capacity consumption of each product is arb...
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作者：Huh, Woonghee Tim; Li, Hongmin
作者单位：University of British Columbia; Arizona State University; Arizona State University-Tempe
摘要：We develop a solution approach to the centralized pricing problem of a nested attraction model with a multistage tree structure. We identify conditions under which the optimal solution can be uniquely determined, and we characterize the optimal solution as a fixed point of a single variable. In the special case of a multistage nested logit model, we show the impact of asymmetry in price sensitivity and adjustment index (also known as the dissimilarity index) and we derive a closed-form solutio...
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作者：Bertsimas, Dimitris; Johnson, Mac; Kallus, Nathan
作者单位：Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT)
摘要：Random assignment, typically seen as the standard in controlled trials, aims to make experimental groups statistically equivalent before treatment. However, with a small sample, which is a practical reality in many disciplines, randomized groups are often too dissimilar to be useful. We propose an approach based on discrete linear optimization to create groups whose discrepancy in their means and variances is several orders of magnitude smaller than with randomization. We provide theoretical a...
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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：den Boer, Arnoud V.; Zwart, Bert
作者单位：University of Twente; Centrum Wiskunde & Informatica (CWI); Vrije Universiteit Amsterdam
摘要：We study a dynamic pricing problem with finite inventory and parametric uncertainty on the demand distribution. Products are sold during selling seasons of finite length, and inventory that is unsold at the end of a selling season perishes. The goal of the seller is to determine a pricing strategy that maximizes the expected revenue. Inference on the unknown parameters is made by maximum-likelihood estimation. We show that this problem satisfies an endogenous learning property, which means tha...
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作者：Candogan, Ozan; Ozdaglar, Asuman; Parrilo, Pablo A.
作者单位：University of Chicago; Massachusetts Institute of Technology (MIT)
摘要：We study a special class of multi-item valuations (tree valuations) that exhibit both value complementarity and substitutability. We provide a linear programming formulation of the efficient allocation problem that is of polynomial size in the number of agents and items. This reveals a new class of valuations for which a Walrasian equilibrium exists in the presence of value complementarities. An iterative algorithm for this linear program, in conjunction with an appropriate payment rule, yield...
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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：Demirel, Sueleyman; Duenyas, Izak; Kapuscinski, Roman
作者单位：Amazon.com; University of Michigan System; University of Michigan
摘要：Consider a firm that produces multiple products on dedicated production lines (stage 1), which are further customized/calibrated on a shared resource (stage 2), common to all products. The dedicated production lines and the shared resource for calibration face capacity uncertainties. The firm holds inventory of products that are not yet calibrated and carries out calibration when an order is received. We analyze a multiperiod inventory model for two products and derive the optimal production p...
