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作者：Gupta, Vishal; Kallus, Nathan
作者单位：Cornell University; Cornell University
摘要：Managing large-scale systems often involves simultaneously solving thousands of unrelated stochastic optimization problems, each with limited data. Intuition suggests that one can decouple these unrelated problems and solve them separately without loss of generality. We propose a novel data-pooling algorithm called Shrunken-SAA that disproves this intuition. In particular, we prove that combining data across problems can outperform decoupling, even when there is no a priori structure linking t...
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作者：Cachon, Gerard P.; Kaaua, Dawson
作者单位：University of Pennsylvania; Georgetown University
摘要：Florida, an important state in presidential elections in the United States, has received considerable media coverage in recent years for long lines to vote. Do some segments of the population receive a disproportionate share of the resources to serve the voting process, which could encourage some or dissuade others from voting? We conduct the first empirical panel data study to examine whether minority and Democrat voters in Florida experience lower poll worker staffing, which could lengthen t...
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作者：Agha, Leila; Ericson, Keith Marzilli; Geissler, Kimberley H.; Rebitzer, James B.
作者单位：Dartmouth College; National Bureau of Economic Research; Boston University; University of Massachusetts System; University of Massachusetts Amherst
摘要：We examine the teams that emerge when a primary care physician (PCP) refers patients to specialists. When PCPs concentrate their specialist referrals???for instance, by sending their cardiology patients to fewer distinct cardiologists???repeat interactions between PCPs and specialists are encouraged. Repeated interactions provide more opportunities and incentives to develop productive team relationships. Using data from the Massachusetts All Payer Claims Database, we construct a new measure of...
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作者：Avramidis, Panagiotis; Mylonopoulos, Nikolaos; Pennacchi, George G.
作者单位：American College of Greece; University of Illinois System; University of Illinois Urbana-Champaign
摘要：We develop a model of competition between banks and a marketplace lender to motivate empirical tests using local market data on U.S. banks and the largest marketplace lending platform. Employing mergers of large, multimarket banks as an exogenous credit supply shock, we find that marketplace lending absorbs unmet demand for consumer credit following a decline in the availability of bank credit. Merger-induced bank branch closings lead to an increase in marketplace loan requests and loan accept...
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作者：Agrawal, Vishal V.; Yucel, Safak
作者单位：Georgetown University
摘要：During a heat wave on a summer afternoon, a utility firm may face unusually high demand and procurement cost for electricity. Under such conditions, a demandresponse event occurs, and the firm asks residential customers to reduce their demand. Such a demand-response program not only reduces the firm's procurement cost, but it can also be environmentally beneficial by reducing generation from emissions-intensive power plants. In a demand-response program, a utility firm pays a rebate to custome...
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作者：Cheung, Wang Chi; Ma, Will; Simchi-Levi, David; Wang, Xinshang
作者单位：National University of Singapore; Columbia University; Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT); Shanghai Jiao Tong University
摘要：We study a general problem of allocating limited resources to heterogeneous customers over time under model uncertainty. Each type of customer can be serviced using different actions, each of which stochastically consumes some combination of resources and returns different rewards for the resources consumed. We consider a general model in which the resource consumption distribution associated with each customer type-action combination is not known but is consistent and can be learned over time...
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作者：Gao, Xiangyu; Jasin, Stefanus; Najafi, Sajjad; Zhang, Huanan
作者单位：Chinese University of Hong Kong; University of Michigan System; University of Michigan; Hautes Etudes Commerciales (HEC) Paris; University of Colorado System; University of Colorado Boulder
摘要：We consider joint learning and optimization problems under a general Cascade Click model. Under this model, customers examine the products in a decreasing order of display, from the top to (potentially) the bottom of the list. At each step, customers can decide to either purchase the current product, forego the current product and continue examining the next product, or simply terminate the search without purchasing any product. We first consider the core pricing problem, where the display pos...
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作者：Chen, Yi-Chun; Misic, Velibor V.
作者单位：University of California System; University of California Los Angeles
摘要：Customer behavior is often assumed to follow weak rationality, which implies that adding a product to an assortment will not increase the choice probability of another product in that assortment. However, an increasing amount of research has revealed that customers are not necessarily rational when making decisions. In this paper, we propose a new nonparametric choice model that relaxes this assumption and can model a wider range of customer behavior, such as decoy effects between products. In...
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作者：Bonifonte, Anthony; Ayer, Turgay; Haaland, Benjamin
作者单位：University System of Ohio; Denison University; University System of Georgia; Georgia Institute of Technology; Utah System of Higher Education; University of Utah
摘要：Blood pressure (BP) is a significant controllable risk factor for cardiovascular disease (CVD), the leading cause of death worldwide. BP comprises two interrelated measurements: systolic and diastolic. CVD risk is minimized at intermediate BP values, a notion known as the J-curve effect. The J-curve effect imposes fundamental trade-offs in simultaneous management of systolic and diastolic BP; however, assessing a comprehensive set of joint systolic/diastolic BP treatment thresholds while expli...
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作者：Anderer, Arielle; Bastani, Hamsa; Silberholz, John
作者单位：University of Pennsylvania; University of Michigan System; University of Michigan
摘要：The success of a new drug is assessed within a clinical trial using a primary endpoint, which is typically the true outcome of interest-for example, overall survival. However, regulators sometimes approve drugs using a surrogate outcome-an intermediate indicator that is faster or easier to measure than the true outcome of interest-for example, progression-free survival-as the primary endpoint when there is demonstrable medical need. Although using a surrogate outcome (instead of the true outco...
