{Problem Definition:} This paper considers the operational management problems under a newly proposed choice model that captures the effect of focality. The offered assortment is separated into the focal set and the non-focal set under this new model due to the bias of focality, which is...

Large e-commerce retailers and department stores function as marketplaces for millions of sellers, and consumers rely on the platform's assortment and display decisions to examine different sellers and make purchase decisions. Traditionally, the primary objective of these marketplaces for...

Problem definition: This paper incorporates a piecewise linear structure into the utility-price relationship of the classic multinomial logit (MNL) model, and studies the associated operations problems such as estimation and pricing. The derived model is referred to as the piecewise MNL model...

In this paper, we relax the restriction on the identical distribution for the random utility parts under discrete choice models. The derived new choice model can allow more flexible substitution pattern, and has the potential to describe choice behavior more accurately. If an alternative's...

Market size, measured by the number of people who are interested in products from the same category, may be highly influenced by assortment planning and pricing decisions. This effect is referred to as market expansion. In this paper, we incorporate the market expansion effects into consumer...

Problem definition: This paper studies the effects of product tracing and recalls in a supply chain with one retailer and multiple manufacturers, each of which may reduce the product quality below the required standard to save production cost, but at the risk of being caught.Academic/practical...

We consider a supply chain where an OEM (manufacturer) sources a component from multiple suppliers. OEM uses the component to make a product that he then sells to end customers. When a component fails in the field, warranty costs are incurred. The focus of the paper is to examine various...

Customers often face multiple choices when purchasing a product or service. After making a choice, they sometimes have to wait for a while before receiving their purchased item due to the firm's limited capacityto process orders. This paper incorporates the anticipated wait for receiving...

This paper investigates the threshold Luce model, a recently proposed choice model with a threshold for the consideration-set formation. Under the threshold Luce model, consumers first form their consideration set: If an alternative with significantly low utility is dominated by another one, it...

This paper investigates the effects of multiple purchases that arise in the retailing of consumer goods, in which the product choice and consumer surplus depend not only on what to purchase but also on how many units to purchase. We incorporate the multiple purchases into consumer choice...