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Supply Base Design for the Procurement of Multiple Items 

Date: 08/2019 Author(s): Martínez de Albéniz, Victor; Wang, Jiao Document type: Article in Journal (refereed) Sourcing new products in advance entails significant risks for a buyer. To reduce the possibility of bringing a mediocre item to the market, buyers can build a large supply base and pick the best available products after uncertainties have materialized. Designing such a supply base is a challenging task: the buyer needs to decide how many suppliers ... More information Read related article

Tractable Approximations for Assortment Planning with Product Costs 

Date: 03/2019 Author(s): Kunnumkal, Sumit; Martínez de Albéniz, Victor Editor(s): CIMS - Center for Innovation Marketing and Strategy Document type: Article in Journal (refereed) Assortment planning under a logit demand model is a difficult problem when there are product-specific fixed costs. We develop a new continuous relaxation of the problem that is based on the parametrization of the problem on the total assortment attractiveness. This relaxation provides an upper bound on the optimal expected profit. We show that the ... More information

Effects of Assortment Breadth Announcements on Manufacturer Competition 

Date: 27/03/2018 Author(s): Heese, Sebastian; Martínez de Albéniz, Victor Document type: Article in Journal (refereed) Retailers typically use assortment planning to maximize store profits given product characteristics. We study the manufacturers' price-setting interactions and how these can be manipulated by the retailer's assortment strategy. We show that constraining the breadth of the assortment has two main effects on retailer profits: First, a larger assortment ... More information Read related article

Measuring and Exploiting the Impact of Exhibition Scheduling on Museum Attendance 

Date: 10/10/2017 Author(s): Martínez de Albéniz, Victor; Valdivia, Ana Document type: Article in Journal (refereed) Attendance at a museum fluctuates over time and is largely dependent on which exhibitions are on display. In this paper, we build a model to study and manage the impact of exhibitions on the number of museum visitors. We first estimate the model using data collected from two large museums in Barcelona. We find that, in addition to seasonality, exhibition ... More information Read related article

Dynamic Product Rotation in the Presence of Strategic Customers 

Date: 07/2017 Author(s): Bernstein, Fernando; Martínez de Albéniz, Victor Document type: Article in Journal (refereed) Dynamic product rotation is perceived as a useful lever to increase sales. The effect over individual customers is, however, unclear: more choice in the future may induce them to postpone a purchase if the current offer is not sufficiently appealing, hoping to buy a better product in the future; moreover, visiting a store to learn about a new product ... More information

Conditionally Exponential Random Models for Individual Properties and Network Structures: Method and Application 

Date: 01/2017 Author(s): Nasini, Stefano; Martínez de Albéniz, Victor; Dehdarirad, Tahereh Document type: Article in Journal (refereed) Exponential random models have been widely adopted as a general probabilistic framework for complex networks and recently extended to embrace broader statistical settings such as dynamic networks, valued networks or two-mode networks. Our aim is to provide a further step into the generalization of this class of models by considering sample spaces which ... More information

Dynamic Speed Optimization in Supply Chains with Stochastic Demand 

Date: 08/2016 Author(s): Berling, P.; Martínez de Albéniz, Victor Document type: Article in Journal (refereed) In this paper, we analyze how to continuously adjust the speed in a supply chain with stochastic demand. For each unit (e.g., truckload, shipping container) in the chain, one must decide at which speed it should be moved downstream, given the state of the system, to minimize total supply chain costs. We decompose the problem into a set of one-dimensional ... More information

A Characterization of Optimal Base-Stock Levels for a Multistage Serial Supply Chain 

Date: 02/2016 Author(s): Berling, P.; Martínez de Albéniz, Victor Document type: Article in Journal (refereed) In this article, we present a multistage model to optimize inventory control decisions under stochastic demand and continuous review. We first formulate the general problem for continuous stages and use a decomposition solution approach: since it is never optimal to let orders cross, the general problem can be broken into a set of single-unit subproblems ... More information

Sourcing Strategies and Supplier Incentives for Short Life-Cycle Goods 

Date: 02/2016 Author(s): Martínez de Albéniz, Victor; Calvo, Eduard Document type: Article in Journal (refereed) Multiple sourcing with quick response has been recognized as a useful tool to manage demand risk for short-life-cycle goods. However, general wisdom has traditionally ignored the effect of these practices on supplier incentives. In this paper we find that, when suppliers make pricing decisions, dual sourcing does not always lead to higher supply chain ... More information Read related article

Safety Stock, Excess Capacity or Diversification: Trade-Offs under Supply and Demand Uncertainty 

Date: 01/2016 Author(s): Chaturvedi, Aadhaar; Martínez de Albéniz, Victor Document type: Article in Journal (refereed) Firms mitigate uncertainty in demand and supply by carrying safety stock, planning for excess capacity and diversifying supply sources. In this study, we provide a framework to jointly optimize these three levers in a periodic review infinite horizon setting, and in particular we examine how one can reduce inventory and capacity investments through ... More information
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