-
作者：Zhang, Wen; Chen, Qi (George); Katok, Elena
作者单位：Baylor University; University of London; London Business School; University of Texas System; University of Texas Dallas
摘要：This paper considers a resourcing setting in which a qualified supplier (the incumbent) and multiple suppliers that have not yet been qualified (the entrants) compete in an open-bid descending auction for a single-supplier contract. Because of the risk of supplier nonperformance, the buyer only awards the contract to a qualified supplier; meanwhile, the buyer can conduct supplier qualification screening at a cost to verify whether the entrant suppliers can perform the contract. Conventionally,...
-
作者：McLennan-Smith, Timothy A.; Kalloniatis, Alexander C.; Jovanoski, Zlatko; Sidhu, Harvinder S.; Roberts, Dale O.; Watt, Simon; Towers, Isaac N.
作者单位：University of New South Wales Sydney; Defence Science & Technology; Australian National University
摘要：Traditional combat models, such as Lanchester's equations, are typically limited to two competing populations and exhibit solutions characterized by exponential decay-and growth if logistics are included. We enrich such models to account for modern and future complexities, particularly around the role of interagency engagement in operations as often displayed in counterinsurgency operations. To address this, we explore incorporation of nontrophic effects from ecological modeling. This provides...
-
作者：Cao, Zhigang; Chen, Bo; Chen, Xujin; Wang, Changjun
作者单位：Beijing Jiaotong University; University of Warwick; Chinese Academy of Sciences; Academy of Mathematics & System Sciences, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Beijing University of Technology
摘要：We propose a game model for selfish routing of atomic agents, who compete for use of a network to travel from their origins to a common destination as quickly as possible. We follow a frequently used rule that the latency an agent experiences on each edge is a constant transit time plus a variable waiting time in a queue. A key feature that differentiates our model from related ones is an edge-based tie-breaking rule for prioritizing agents in queueing when they reach an edge at the same time....
-
作者：Gong, Xiting; Wang, Tong
作者单位：Chinese University of Hong Kong; Shanghai Jiao Tong University
摘要：In this paper, we establish two preservation results of additive convexity for a class of optimal transformation problems and a class of optimal disposal problems. For both classes of problems, there are multiple resources; our results show that if these resources have different priorities to be transformed/disposed under the optimal policy, then the additive convexity and bounded monotonicity of the objective function are preserved to the value function after optimization. A key observation i...
-
作者：Wei, Lai; Jasin, Stefanus; Xin, Linwei
作者单位：Boston College; University of Michigan System; University of Michigan; University of Chicago
摘要：Service-level constraint is often used as a metric to directly control the quality of service (e.g., managing the probability of stockout) in practice. Many inventory problems with service-level constraints are often difficult to solve and are typically approximated by deterministic formulations. This raises an important question regarding the quality of such an approach. To shed light on this question, in this paper, we consider two simplified yet fundamental inventory models (with backorder ...
-
作者：Abdallah, Tarek; Asadpour, Arash; Reed, Josh
作者单位：Northwestern University; City University of New York (CUNY) System; Baruch College (CUNY); New York University
摘要：Bundle-size pricing (BSP) is a multidimensional selling mechanism where the firm prices the size of the bundle rather than the different possible combinations of bundles. In BSP, the firm offers the customer a menu of different sizes and prices. The customer then chooses the size that maximizes her surplus and customizes her bundle given her chosen size. Although BSP is commonly used across several industries, little is known about the optimal BSP policy in terms of sizes and prices, along wit...
-
作者：Aflaki, Arian; Swinney, Robert
作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); University of Pittsburgh; Duke University
摘要：We study the value of inventory integration (or pooling) for a firm selling a seasonal good over two periods: in the first period the firm charges a high price, and in the second period the firm charges a low price to clear remaining inventory. Consumers are rational and decide when to visit the firm based on the price of the product and its anticipated availability. We show that integration-which combines inventory from distinct selling channels or geographic regions, for example, online and ...
-
作者：Wang, Ruxian
作者单位：Johns Hopkins University
摘要：Market size, measured by the number of people who are interested in products from the same category, may be largely influenced by assortment planning and pricing decisions. This effect is referred to as market expansion. In this paper, I incorporate the market expansion effects into consumer choice models and investigate various operations problems. In particular, I take the widely used multinomial logit model as a showcase to examine the market expansion effects on assortment planning and pri...
-
作者：Das, Bikramjit; Dhara, Anulekha; Natarajan, Karthik
作者单位：Singapore University of Technology & Design
摘要：Since the seminal work of Scarf (A min-max solution of an inventory problem) in 1958 on the newsvendor problem with ambiguity in the demand distribution, there has been a growing interest in the study of the distributionally robust newsvendor problem. The model is criticized at times for being conservative because the worst-case distribution is discrete with a few support points. However, it is the order quantity prescribed by the model that is of practical relevance. Interestingly, the order ...
-
作者：Kovacova, Gabriela; Rudloff, Birgit
作者单位：Vienna University of Economics & Business
摘要：Choosing a portfolio of risky assets over time that maximizes the expected return at the same time as it minimizes portfolio risk is a classical problem in mathematical finance and is referred to as the dynamicMarkowitz problem (when the risk is measured by variance) or, more generally, the dynamic mean-risk problem. In most of the literature, the mean-risk problem is scalarized, and it is well known that this scalarized problem does not satisfy the (scalar) Bellman's principle. Thus, the clas...
