Explanipedia

Operations, risk, and small firms: Field results from irrigation equipment vendors in Senegal Open

Mark Brennan, Stephen C. Graves, Jonars Spielberg, Bish Sanyal · 2025

Data-Driven Failure Time Estimation in a Consumer Electronics Closed-Loop Supply Chain Open

Stef Lemmens, Andre Calmon, Stephen C. Graves · 2023

Supply chain challenges in the post–Covid Era Open

Stephen C. Graves, Brian Tomlin, Sean P. Willems · 2022

In this paper, we reflect on the supply chain issues and operational challenges that we experienced through the various stages of the Covid‐19 pandemic. We identify some phenomena that were attributable in some way to the pandemic, and app…

Operations, risk, and small firms: Field results from irrigation equipment vendors in Senegal Open

Mark Brennan, Stephen C. Graves, Jonars Spielberg, Bish Sanyal · 2022

What are supply chain management challenges in a lower‐income economy, and how do managers at smaller firms address them? This field study presents these challenges from the perspective of the 60 managers who run firms selling irrigation e…

Velocity‐Based Stowage Policy for a Semiautomated Fulfillment System Open

Tolga Çezik, Stephen C. Graves, Amy C. Liu · 2022

Online retail fulfillment is increasingly performed by semiautomated fulfillment systems in which inventory is stored in mobile pods that are moved by robotic drives. In this paper, we develop a model that explores the benefits of velocity…

Supply Chain Challenges in the Post-COVID Era Open

Stephen C. Graves, Brian Tomlin, Sean P. Willems · 2022

Velocity-Based Stowage Policy for Semi-Automated Fulfillment System Open

Tolga Çezik, Stephen C. Graves, Amy Liu · 2021

Warranty Matching in a Consumer Electronics Closed-Loop Supply Chain Open

Andre Calmon, Stephen C. Graves, Stef Lemmens · 2020

Problem definition : We examine a dynamic assignment problem faced by a large wireless service provider (WSP) that is a Fortune 100 company. This company manages two warranties: (i) a customer warranty that the WSP offers its customers and…

Reflections on the Evolution of Operations Management Open

Stephen C. Graves · 2020

Item Aggregation and Column Generation for Online-Retail Inventory Placement Open

Annie Chen, Stephen C. Graves · 2019

Warranty Matching in a Consumer Electronics Closed-Loop Supply Chain Open

Andre Calmon, Stephen C. Graves, Stef Lemmens · 2019

How to Think about Planned Lead Times Open

Stephen C. Graves · 2019

Velocity‐Based Storage Assignment in Semi‐Automated Storage Systems Open

Rong Yuan, Stephen C. Graves, Tolga Çezik · 2018

Our research focuses on the storage decision in a semi‐automated storage system, where the inventory is stored on mobile storage pods. In a typical system, each storage pod carries a mixture of items, and the inventory of each item is spre…

Capacity planning with demand uncertainty for outpatient clinics Open

Thu Ba T. Nguyen, Appa Iyer Sivakumar, Stephen C. Graves · 2018

In this study, we develop a capacity planning model to determine the required number of physicians for an outpatient system with patient reentry. First-visit (FV) patients are assumed to arrive randomly to the system. After their first app…

Ship-Pack Optimization in a Two-Echelon Distribution System with Product Obsolescence Open

Elnaz Karimi, Stephen C. Graves, Zhenhui Ren · 2018

Balancing Benefits and Flexibility Losses in Platform Planning Open

Paul Herbert Jana, Stephen C. Graves, Martin Grunow · 2018

Coordination of Multi-Echelon Supply Chains Using the Guaranteed Service Framework Open

Tor Schoenmeyr, Stephen C. Graves · 2018

Integrated Planning for Design and Production in Two-Stage Recycling Operations Open

Jiyoun Christina Chang, Stephen C. Graves, Randolph Kirchain, Elsa Olivetti · 2018

Capacity planning with demand uncertainty for outpatient clinics Open

Thu Ba T. Nguyen, Appa Iyer Sivakumar, Stephen C. Graves · 2017

In this study, we develop a capacity planning model to determine the required number of physicians for an outpatient system with patient reentry. First-visit (FV) patients are assumed to arrive randomly to the system. After their first app…

Forecast Evolution in the Final Order Problem with Product Returns Open

Christian Bohner, Stephen C. Graves, Stefan Minner · 2017

Stowage Decisions in Multi-Zone Storage Systems Open

Rong Yuan, Tolga Çezik, Stephen C. Graves · 2017

No Magic Bullet: A Theory-Based Meta-Analysis of Markov Transition Probabilities in Studies of Service Systems for Persons With Mental Disabilities Open

H. Stephen Leff, Clifton Chow, Stephen C. Graves · 2016

R systems performed better than M and B systems. However, M systems did not perform better than B systems. All systems showed negative as well as positive TPs. For approximately one-third of synthesized TPs, substantial interstudy heteroge…

Scheduling rules to achieve lead-time targets in outpatient appointment systems Open

Thu Ba T. Nguyen, Appa Iyer Sivakumar, Stephen C. Graves · 2016

Velocity-Based Storage Assignment in Semi-Automated Storage Systems Open

Rong Yuan, Tolga Çezik, Stephen C. Graves · 2016

OM Forum—Practice-Based Research in Operations Management: What It Is, Why Do It, Related Challenges, and How to Overcome Them Open

Jérémie Gallien, Stephen C. Graves, Alan Scheller‐Wolf · 2015

Practice-based research—research performed with the intent of improving the operation of a collaborating practitioner—is an important endeavor for our field: such work may reveal new problems, interesting phenomena, and may also generate d…

Mitigating Spillover in Online Retailing via Replenishment Open

Jason Acimovic, Stephen C. Graves · 2015

Inventory Management in a Consumer Electronics Closed-Loop Supply Chain Open

Andre Calmon, Stephen C. Graves · 2015

Stephen C. Graves YOU? Author Swipe