We study a continuous-review, two-echelon inventory system with one central warehouse, multiple local facilities, and each facility facing random demand. Local facilities replenish their stock from the central warehouse (or distribution center), which in turn places orders at an outside supplier...

One of the challenging issues in developing analytical tools to assist the multi-product (item) procurement decisions is how attributes (features) of products can be accommodated to address the substitution effect. It is challenging because the historical sales data seldomly captures whether a...

Surge pricing in ride hailing platforms is a pivotal and controversial subject. In this paper, we investigate surge pricing from a temporal perspective; in particular, we highlight the strategic behavior by riders and drivers and that drivers respond to surge pricing much slower than riders. We...

Many traditional retailers and e-tailers like Walmart and Amazon have been implementing omnichannel strategies, such as buy-online pickup-at-store (BOPS), buy-online ship-to-store (BOSS), and buy-online ship-from-store (BOFS). We build a stylized model to investigate the impacts of these...