In a two-stage serial supply chain, a periodic flexible policy (PF policy) allows the retailer to receive fixed orders that may depend on demand history in one period of the ordering cycle and order freely in other periods. Existing literature has shown that certain PF policies can significantly...

Onion is an indispensable ingredient of the Indian diet, and plays a vital role in Indian economy, society, and politics. The ongoing volatility in its prices leads to significant social unrest. In this paper, we are interested in helping decision-makers to rigorously evaluate policy proposals...

In this paper, we use integer programming (IP) to compute minimal forecast horizons for the classical dynamic lot-sizing problem (DLS). As a solution approach for computing forecast horizons, integer programming has been largely ignored by the research community. It is our belief that the...

This paper analyzes the tradeoff between (demand) substitution costs and (production) changeover costs in a discrete-time production-inventory setting using a two-product dynamic lot-sizing model with changeover, inventory carrying, and substitution costs. We first show that the problem is...

Omnichannel firms regularly share information between their multiple channels (e.g., online vs. physical store), i.e., horizontal information sharing, to improve their operational and financial performance. As information often tends to be error-prone -- when it is collected, transmitted, or...

The post-pandemic world requires a renewed focus from service providers in ensuring that all customer segments receive the essential services (food, healthcare, housing, education, etc.) they need. Philanthropic service providers are unable to cope with the increased demands caused by the...

A Dedicated Subnetwork (DSN) refers to a subset of lanes with associated loads in a shipper’s transportation network, for which a fleet of resources – trucks, drivers, and other equipment – is exclusively assigned to carry out all shipping requirements. The resources assigned to a DSN are...

Line extensions – variants of existing products with new appearances, functions, or forms – constitute a significant fraction of products launched each year. While line extensions typically share components with existing products and, therefore, require lower development costs (as compared...