We consider a retailer facing heterogeneous customers with initially unknown product preferences. Customers are characterized by a diverse set of demographic and transactional attributes. The retailer can personalize the assortment offerings based on the available customers’ profile information to

Cardiovascular disease is among the leading causes of death worldwide and coronary artery disease (CAD) is the major underlying culprit. Percutaneous coronary intervention (PCI) has proven to be beneficial to patients with acute coronary syndrome, yet its benefit to stable CAD patients is more

Supply chain networks connect products and services with customers, production with consumption, supply with demand. Supply chain networks channel physical, information and financial flows among many self-interested independent decision makers. The complexity and opacity of the supply chain network

We consider a stylized, discrete-time model for an Intensive Care Unit (ICU) in which patients’ health conditions change over time with Markovian probabilities. At any point in time, each patient is in one of two possible health stages, one representing a more serious and the other representing a

We study the effects of waiting time and rescheduling on no-show behavior in an outpatient appointment system for both new and follow-up patients. Previous literature has primarily focused on new patients and investigated the role of waiting time on no-show probability. We offer a more nuanced

In many service systems, different customers may require different service levels defined by the maximum stock-out probability constraints. A key challenge in such systems is to find out the minimal capacity needed and how to allocate this limited capacity to customers in order to meet each

We study a firm's manufacturing strategies under two types of flexible production technologies: the traditional flexible technology and 3D printing. Under the traditional flexible technology, capacity becomes more expensive as it handles more product variants; under 3D printing, however, capacity

Annual sales of store brands and retailer introductions of new store brands have grown quickly in recent years. We address retailers' product assortment decisions (in terms of store and national brands) and related pricing decisions at two competing retailers, along with pricing decisions of a

A large call center faces a great amount of daily traffic. Since the rate of incoming calls varies over time, a call center may become overloaded during the peak hours of a day. In addition, many service-oriented call centers are intentionally operated in an overloaded regime so as to save staffing