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作者：Aouad, Ali; Segev, Danny
作者单位：University of London; London Business School; Tel Aviv University
摘要：We study the dynamic assortment planning problem under the widely utilized multinomial logit choice model (MNL). In this single-period assortment optimization and inventory management problem, the retailer jointly decides on an assortment, that is, a sub-set of products to be offered, as well as on the inventory levels of these products, aiming to maximize the expected revenue subject to a capacity constraint on the total number of units stocked. The demand process is formed by a stochastic st...
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作者：Bimpikis, Kostas; Mantegazza, Giacomo
作者单位：Stanford University
摘要：Two-sided platforms play an important role in reducing frictions and facilitating trade, and in doing so they increasingly engage in collecting and processing data about supply and demand. This paper establishes that platforms have an incentive to strategically disclose (coarse) information about demand to the supply side, as this can considerably boost their profits. However, this practice may also adversely affect the welfare of consumers. By optimally designing its information disclosure po...
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作者：Cho, Jehum; Papavasiliou, Anthony
摘要：Recent research has demonstrated that real-time auctions can generate the need for side payments, even if the market clearing models are convex, because of the rolling nature of real-time market clearing. This observation has inspired proposals for modifying the real-time market-clearing model in order to account for binding past decisions. We extend this analysis in order to account for uncertainty by proposing a real-time market clearing model with look-ahead and an endogenous representation...
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作者：Krishnamurthy, Akshay; Lykouris, Thodoris; Podimata, Chara; Schapire, Robert
作者单位：Microsoft; Massachusetts Institute of Technology (MIT); University of California System; University of California Berkeley
摘要：We study contextual search, a generalization of binary search in higher dimensions, which captures settings such as feature-based dynamic pricing. Standard formulations of this problem assume that agents act in accordance with a specific homogeneous response model. In practice, however, some responses may be adversarially corrupted. Existing algorithms heavily depend on the assumed responsemodel being (approximately) accurate for all agents and have poor performance in the presence of even a f...
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作者：El Housni, Omar; Topaloglu, Huseyin
摘要：We consider a joint assortment optimization and customization problem under a mixture of multinomial logit models. In this problem, a firm faces customers of different types, each making a choice within an offered assortment according to the multinomial logit model with different parameters. The problem takes place in two stages. In the first stage, the firm picks an assortment of products to carry the subject to a cardinality constraint. In the second stage, a customer of a certain type arriv...
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作者：Golrezaei, Negin; Manshadi, Vahideh; Schneider, Jon; Sekard, Shreyas
作者单位：Massachusetts Institute of Technology (MIT); Yale University; Alphabet Inc.; Google Incorporated; University of Toronto; University Toronto Scarborough; University of Toronto
摘要：In many online platforms, customers' decisions are substantially influenced by product rankings as most customers only examine a few top-ranked products. This induces a race for visibility among sellers, who may be incentivized to artificially inflate their position by employing fake users as exemplified by the emergence of click farms. Motivated by such fraudulent behavior, we study the problem of learning product rankings when a platform faces a mixture of real and fake users who are indisti...
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作者：Asadpour, Arash; Niazadeh, Rad; Saberi, Amin; Shameli, Ali
作者单位：City University of New York (CUNY) System; Baruch College (CUNY); University of Chicago; Stanford University
摘要：We study a submodular maximization problem motivated by applications in online retail. A platform displays a list of products to a user in response to a search query. The user inspects the first k items in the list for a k chosen at random from a given distribution and decides whether to purchase an item from that set based on a choice model. The goal of the platform is to maximize the engagement of the shopper defined as the probability of purchase. This problem gives rise to a less-studied v...
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作者：Lorentziadis, Panos L.
作者单位：Athens University of Economics & Business
摘要：In multidimensional auctions, bidders compete in both quality and price, which are combined by a score rule. A well-known problem in procurement management is that nonprice attributes are often poorly measured and unreliably estimated. Adjustments of the reported quality based on the qualities of rival bids can enhance the reliability of the measurement process. We develop a general model of score function that is dependent on the qualities offered by all bidders who differ in terms of their p...
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作者：Talluri, Kalyan; Tsoukalasb, Angelos
作者单位：Imperial College London; Erasmus University Rotterdam; Erasmus University Rotterdam - Excl Erasmus MC
摘要：Professional service firms (PSFs) such as management consulting, law, accounting, investment banking, architecture, advertising, and home-repair companies provide services for complicated turnkey projects. A firm bids for a project and, if successful in the bid, assigns employees to work on the project. We formulate this as a revenue management problem under two assumptions: a quality-revelation setup, where the employees that would be assigned to the project are committed ex ante, as part of ...
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作者：Maglaras, Costis; Scarsini, Marco; Shin, Dongwook; Vaccarid, Stefano
作者单位：Columbia University; Luiss Guido Carli University; Hong Kong University of Science & Technology
摘要：This paper studies product ranking mechanisms of a monopolistic online platform in the presence of social learning. The products' quality is initially unknown, but consumers can sequentially learn it as online reviews accumulate. A salient aspect of our problem is that consumers, who want to purchase a product from a list of items displayed by the platform, incur a search cost while scrolling down the list. In this setting, the social learning dynamics, and hence the demand, is affected by the...
