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作者：Agarwal, Anish; Shah, Devavrat; Shen, Dennis
作者单位：Columbia University; Massachusetts Institute of Technology (MIT); University of Southern California
摘要：The synthetic controls (SC) methodology is a prominent tool for policy evaluation in panel data applications, typically grounded in a low-rank matrix factor model where potential outcomes are governed by low-dimensional latent factors over units and time. In this article, we present the synthetic interventions (SI) framework, an extension of the SC framework to accommodate multiple interventions. Fundamental to SI is a lowrank tensor factor model that builds on the matrix structure by embeddin...
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作者：Ozel, Aysu; Smilowitz, Karen; Goldstein, Lila K. S.
作者单位：Northwestern University
摘要：Comprehensive community engagement in public school district design is essential to create equitable and effective enrollment policies reflective of community needs and values. We revisit the school district design problem with a focus on codesigning with community partners. We introduce a new compact formulation that incorporates multiple decisions simultaneously by assigning students in each geographic unit to a set of schools (e.g., elementary, middle, and high schools, and schools with spe...
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作者：Jin, Ying; Ren, Zhimei; Zhou, Zhengyuan
作者单位：University of Pennsylvania; New York University
摘要：The growing availability of observational data has ushered in an exciting new era of personalized data-driven decision making. A key impediment to this vision is that observational data are generally prone to unobserved confounding, so inferential schemes that assume it away-as is often done in the literature-are inadequate. In this paper, we introduce the f-sensitivity model, which characterizes the violation of unconfoundedness by assuming that the selection bias because of unmeasured confou...
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作者：Chen, Yilun; Kanoria, Yash; Kumar, Akshit; Zhang, Wenxin
作者单位：The Chinese University of Hong Kong, Shenzhen; Columbia University; Yale University
摘要：Motivated by matching platforms that match agents in a centralized manner, we study dynamic two-sided matching in a setting where both customers (demand) and service providers (supply) are heterogeneous and the pool of service providers is limited. We model heterogeneity on the two sides of the market by demand weight vectors drawn independently and identically distributed (i.i.d.) from some distribution and supply feature vectors drawn i.i.d. from a (possibly) different distribution. The matc...
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作者：Mendelson, Gal; Kuang, Xu
作者单位：Technion Israel Institute of Technology; Stanford University
摘要：Load balancing across parallel servers is an important class of congestion control problems that arise in service systems. An effective load balancer relies heavily on accurate, real-time congestion information to make routing decisions. However, obtaining such information can impose significant communication overheads, especially in demanding applications such as those found in modern data centers. We introduce a framework for communication-aware load balancing and design new load balancing a...
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作者：Yu, Man; Zheng, Shaohui; Chen, Jiguang
作者单位：Hong Kong University of Science & Technology; Xiamen University
摘要：This paper characterizes joint order fulfillment and inventory policies for assemble-to-order generalized W systems, in which k products are assembled from a common component and k product-specific (dedicated) components. We consider a periodicreview system and focus on nested fulfillment policies, in which orders are fulfilled in decreasing order of profit margins. We prove that the optimal fulfillment policy of a twoproduct W system is nested. For systems with more than two products, althoug...
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作者：Benade, Gerdus; Halpern, Daniel; Psomas, Alexandros
作者单位：Boston University; Harvard University; Purdue University System; Purdue University
摘要：We consider the fundamental problem of fairly and efficiently allocating T indivisible items among n agents with additive preferences. Items become available over a sequence of rounds, and every item must be allocated immediately and irrevocably before the next one arrives. Previous work shows that when the agents' valuations for the items are drawn from known distributions, it is possible (under mild assumptions) to find allocations that are envy-free with high probability and Pareto efficien...
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作者：Lin, Yifan; Wang, Yuhao; Zhou, Enlu
作者单位：University System of Georgia; Georgia Institute of Technology
摘要：This article may be used only for the purposes of research, teaching, and/or private study. Commercial use or systematic downloading (by robots or other automatic processes) is prohibited without explicit Publisher approval, unless otherwise noted. For more information, contact permissions@informs.org. The Publisher does not warrant or guarantee the article's accuracy, completeness, merchantability, fitness inclusion of an advertisement in this article, neither constitutes nor implies a guaran...
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作者：Aid, Rene; Basei, Matteo; Ferrarid, Giorgio
作者单位：Universite PSL; Universite Paris-Dauphine; Institut Polytechnique de Paris; ENSTA Paris; University of Bielefeld
摘要：We consider a mean-field model of firms competing a` la Cournot on a commodity market, where the commodity price is given in terms of a power inverse demand function of the industry-aggregate production. Investment is irreversible and production capacity depreciates at a constant rate. Production is subject to Gaussian productivity shocks, whereas large nonanticipated macroeconomic events driven by a two-state continuous-time Markov chain can change the volatility of the shocks, as well as the...
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作者：Spiers, Sandy; Bui, Hoa T.; Loxton, Ryan
摘要：The Euclidean max-sum diversity problem becomes substantially more difficult as the number of coordinates increases despite the number of decision variables not changing. In this paper, we overcome this complexity by constructing a new set of locations whose squared Euclidean distances equal that of the original. Using squared distances allows the objective function to be decomposed into the sum of pairwise distances within each coordinate. A partition set of the coordinates is then used to en...
