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作者：Khazaei, Javad; Coulon, Michael; Powell, Warren B.
作者单位：Princeton University; University of Sussex
摘要：Currently, most Renewable Energy Certificate (REC) markets are defined based on targets that create an artificial step demand function resembling a cliff. This target policy produces volatile prices that can make investing in renewables a risky proposition. In this paper, we propose an alternative policy called Adjustable Dynamic Assignment of Penalties and Targets (ADAPT) that uses a sloped compliance penalty and a self-regulating requirement schedule, both designed to stabilize REC prices, h...
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作者：Rath, Sandeep; Rajaram, Kumar; Mahajan, Aman
作者单位：University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine; University of California System; University of California Los Angeles; University of California System; University of California Los Angeles; University of California Los Angeles Medical Center; David Geffen School of Medicine at UCLA
摘要：We consider the problem of minimizing dally expected resource usage and overtime costs across multiple parallel resources such as anesthesiologists and operating rooms, which are used to conduct a variety of surgical procedures at large multispecialty hospitals. To address this problem, we develop a two-stage, mixed-integer stochastic dynamic programming model with recourse. The first stage allocates these resources across multiple surgeries with uncertain durations and prescribes the sequence...
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作者：Jonasson, Jonas Oddur; Deo, Sarang; Gallien, Jeremie
作者单位：Massachusetts Institute of Technology (MIT); Indian School of Business (ISB); University of London; London Business School
摘要：Early diagnosis of the human immunodeficiency virus (HIV) among infants born to HIV-infected mothers is critical because roughly 50% of untreated infected infants die before the age of two years. Yet most countries in sub-Saharan Africa experience significant delays in diagnosis because of operational inefficiencies in early infant diagnosis (EID) networks. We develop a two-part modeling framework relying on optimization and simulation to generate operational improvements in the assignment of ...
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作者：Bansal, Saurabh; Dyer, James S.
作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; University of Texas System; University of Texas Austin
摘要：We consider two-stage sequential decision-making problems where in Stage 1 an initial decision is made under a multivariate uncertainty, and in Stage 2 the uncertainty is resolved, a further decision is made based on the uncertainty realization, and the payoff is observed. We focus on problems where the payoff is a linear function of the multivariate uncertainty realization. Such problems can be written as single-stage nonlinear optimization problems composed of partial polyhedral expectations...
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作者：Thanh Nguyen
作者单位：Purdue University System; Purdue University
摘要：We analyze the behavior of a competitive n-tier supply chain system, where agents bargain with each other locally. We study the influence of transaction costs on the convergence of the system to a stationary outcome. In particular, we consider a dynamic bargaining game among a finite set of agents and its replications, and use a limit stationary equilibrium to examine the system's behavior as the population's size goes to infinity. The convergence of the system to a limit stationary equilibriu...
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作者：Hu, Shanshan; Hu, Xing; Ye, Qing
作者单位：Shanghai University of Finance & Economics; University of Oregon; Tsinghua University
摘要：Instant discounts and mail-in rebates are two common pricing tools In retail, but they are not simple substitutes. On the one hand, consumers discount the face value of a mail-in rebate, making it less effective than an instant discount in inducing consumers' purchase. On the other hand, a portion of consumers with mail-in rebates fail to redeem them, resulting in savings for the retailer. We study how retailers, under pressure to move inventory, should use these two pricing tools to maximize ...
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作者：He, Simai; Sethuraman, Jay; Wang, Xuan; Zhang, Jiawei
作者单位：Shanghai University of Finance & Economics; Columbia University; Hong Kong University of Science & Technology; New York University; New York University; NYU Shanghai
摘要：We consider the infinite-horizon multiple retailer joint replenishment problem with first-order interaction. In this model, the joint setup cost incurred by a group of retailers placing an order simultaneously consists of a group-independent major setup cost and retailer-specific minor setup costs. The goal is to determine an inventory replenishment policy that minimizes the long-run average system-wide cost. In this paper, we adopt a noncooperative approach to study the joint replenishment ga...
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作者：Bruck, Bruno P.; Iori, Manuel
作者单位：Universita di Modena e Reggio Emilia
摘要：We study the class of one-to-many-to-one single vehicle routing problems with pickups and deliveries, In which a single capacitated vehicle Is used to serve a set of customers requiring a delivery, a pickup, or both. These problems have many real-world applications, including beverage distribution, courier service transportation, and reverse logistics. We first concentrate on a well-studied problem in this class, known as the single vehicle routing problem with deliveries and selective pickups...
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作者：Fischetti, Matteo; Ljubic, Ivana; Monaci, Michele; Sinnl, Markus
作者单位：University of Padua; ESSEC Business School; University of Bologna; University of Vienna
摘要：Bilevel optimization problems are very challenging optimization models arising in many important practical contexts, including pricing mechanisms in the energy sector, airline and telecommunication industry, transportation networks, critical infrastructure defense, and machine learning. In this paper, we consider bilevel programs with continuous and discrete variables at both levels, with linear objectives and constraints (continuous upper level variables, if any, must not appear in the lower ...
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作者：Drozdowski, Maciej; Jaehn, Florian; Paszkowski, Radoslaw
作者单位：Poznan University of Technology; Helmut Schmidt University
摘要：This paper addresses one-machine scheduling with maintenance restrictions. A maintenance operation is position dependent in a sequence of normal jobs if the maintenance has to be performed after at most some defined number of job changes on the machine. We show that several problems with objective functions C-max and L-max are still solvable in polynomial time if position-dependent maintenance is considered. We then consider the problem of preemptive scheduling with ready times and due dates o...
