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作者：Desir, Antoine; Goyal, Vineet; Wei, Yehua; Zhang, Jiawei
作者单位：Columbia University; Duke University; New York University; New York University; NYU Shanghai
摘要：Sparse process flexibility and the long chain have become important concepts in design flexible manufacturing systems. In this paper, we study the performance of the long chain in comparison to all designs with at most 2 n edges over n supply and n demand nodes. We show that, surprisingly, long chain is not always optimal in this class of networks even for i.i.d. demand distributions. In particular, we present a family of instances where a disconnected network with 2 n edges has a strictly bet...
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作者：Kim, Kyoung-Kuk; Kim, Sojung
作者单位：Korea Advanced Institute of Science & Technology (KAIST); Korea Advanced Institute of Science & Technology (KAIST)
摘要：We consider tempered stable Levy subordinators and develop a bridge sampling method. An approximate conditional probability density function (PDF) given the terminal values is derived with stable index less than one, using the double saddlepoint approximation. We then propose an acceptance-rejection algorithm based on the existing gamma bridge and the inverse Gaussian bridge as proposal densities. Its performance is comparable to existing sequential sampling methods such as Devroye (2009) [Dev...
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作者：Liberopoulos, George; Andrianesis, Panagiotis
作者单位：University of Thessaly
摘要：We consider a market in which suppliers with asymmetric capacities and asymmetric marginal and fixed costs compete to satisfy a deterministic and inelastic demand of a commodity in a single period. The suppliers bid their costs to an auctioneer who determines the optimal allocation and the resulting payments, a typical situation in deregulated electricity markets. Under classical marginal-cost pricing, the nonconvexity of the total cost may result in losses for some suppliers because they may ...
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作者：Lorca, Alvaro; Sun, X. Andy; Litvinov, Eugene; Zheng, Tongxin
作者单位：University System of Georgia; Georgia Institute of Technology
摘要：The growing uncertainty associated with the increasing penetration of wind and solar power generation has presented new challenges to the operation of large-scale electric power systems. Motivated by these challenges, we present a multistage adaptive robust optimization model for the most critical daily operational problem of power systems, namely, the unit commitment (UC) problem, in the situation where nodal net electricity loads are uncertain. The proposed multistage robust UC model takes i...
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作者：Alizamir, Saed; de Vericourt, Francis; Sun, Peng
作者单位：Yale University; European School of Management & Technology; Duke University
摘要：Feed-in-tariff (FIT) policies aim at driving down the cost of renewable energy by fostering learning and accelerating the diffusion of green technologies. Under FIT mechanisms, governments purchase green energy at tariffs that are set above market price. The success or failure of FIT policies, in turn, critically depend on how these tariffs are determined and adjusted over time. This paper provides insights into designing cost-efficient and socially optimal FIT programs. Our modeling framework...
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作者：Cummings, Rachel; Echenique, Federico; Wierman, Adam
作者单位：California Institute of Technology; California Institute of Technology
摘要：This paper initiates the study of the testable implications of choice data in settings where agents have privacy preferences. We adapt the standard conceptualization of consumer choice theory to a situation where the consumer is aware of, and has preferences over, the information revealed by her choices. The main message of the paper is that little can be inferred about consumers' preferences once we introduce the possibility that the consumer has concerns about privacy. This holds even when c...
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作者：Alptekinoglu, Aydin; Semple, John H.
作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; Southern Methodist University
摘要：We investigate the use of a canonical version of a discrete choice model due to Daganzo (1979) [Daganzo C (1979) Multinomial Probit: The Theory and Its Application to Demand Forecasting (Academic Press, New York).] in optimal pricing and assortment planning. In contrast to multinomial and nested logit (the prevailing choice models used for optimizing prices and assortments), this model assumes a negatively skewed distribution of consumer utilities, an assumption we motivate by conceptual argum...
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作者：Dai, Tinglong; Jerath, Kinshuk
作者单位：Johns Hopkins University; Columbia University
摘要：We study the impact of limited inventory on optimal sales-force compensation contracts. We adopt a principal-agent framework, characterized by limited liability and rent sharing with the agent. A commonly invoked assumption in the inventory management literature is that the demand distribution satisfies the increasing failure rate (IFR) property. Under this assumption, however, past research has established that a quota-bonus contract-a widely adopted sales-force compensation contract in the p...
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作者：Qin, Likuan; Linetsky, Vadim
作者单位：Northwestern University
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作者：Hu, Peng; Shum, Stephen; Yu, Man
作者单位：Huazhong University of Science & Technology; City University of Hong Kong; Hong Kong University of Science & Technology
摘要：In this paper we formulate and analyze a novel model on a firm's dynamic inventory and markdown decisions for perishable goods. We consider a dynamic stochastic setting, where every period consists of two phases, clearance phase and regular-sales phase. In the clearance phase, the firm decides how much to order for regular sales, as well as whether to markdown some (or all) of the leftover inventory from the previous period that will be disposed otherwise. Since strategic consumers may buy the...
