Research

2018

2017

Strategic Design for Remanufacturing: Analyzing the Complicating Factors for Multiple Lifecycle Products

October 

Based on observations from practice, this study analytically investigates product design philosophies for remanufacturing original equipment manufacturers to determine how the optimal design choice depends on market conditions. Though designing to increase […]

Outpatient Appointment Block Scheduling Under Patient Heterogeneity and Patient No-Shows

October 

We study outpatient appointment block scheduling policies for single providers under conditions of patient heterogeneity in service times and patient no-shows. The objective is to find daily appointment schedules that minimize a […]

Operations in Currency Supply Chains – A Review

June 

Even though more and more transactions and payments are conducted electronically, physical currency (banknotes and coins) still plays an essential role in commerce and trade, and it is expected to maintain its […]

Optimizing Logistics Operations in a Country’s Currency Supply Network

March 

We optimize a large country’s currency supply network for its central bank. The central bank provides currency to all branches (who in turn serve consumers and commerce) through its network of big […]

2016

On-shelf availability, retain performance, and external audits: A field experiment

January 

A potential answer to retailer’s shelf out-of-stocks (OOS), where the item is in store but customers cannot find it, is to employ third-party service providers to execute audits and corrections. However, given […]

Traffic-based labor planning in retail stores

January 

Staffing decisions are crucial for retailers since staffing levels affect store performance and labor-related expenses constitute one of the largest components of retailers’ operating costs. With the goal of improving staffing decisions […]

Managing Enterprise Risks of Technological Systems: An Exploratory Empirical Analysis of Vulnerability Characteristics as Drivers of Exploit Publication

January 

Enterprises experience opportunistic exploits targeted at vulnerable technology. Vulnerabilities in software-based applications, service systems, enterprise platforms, and supply chains are discovered and disclosed on an alarmingly regular basis. A necessary enterprise risk […]

Changing a Leopard’s Spots: A New Research Direction for Organizational Culture in the Operations Management Field

September 

Operations Management (OM) research on organizational culture has to change to be able to inform practice. Currently, organizational culture research in OM is largely confined to narrow topical and methodological niches and […]

Seeing the forest for the trees: Institutional environment impacts on reimbursement processes and healthcare operations.

November 

Healthcare reimbursement processes perform an annual multi-trillion dollar task to remunerate healthcare organizations, physicians, and patients. Healthcare reimbursement entails coding, billing, and payment processes based on care pro- vided to patients. As […]

Traffic-Based Labor Planning in Retail Stores

January 

Staffing decisions are crucial for retailers since staffing levels affect store performance and labor-related expenses constitute one of the largest components of retailers’ operating costs. With the goal of improving staffing decisions […]

2015

Maximizing Revenue Through Two-Dimensional Shelf Space Allocation

July 

We consider the problem of optimally allocating contiguous rectangular presentation spaces in order to maximize revenues. Such problems are encountered in the arrangement of products in retail shelf-space and in the design […]

A 10/7-Approximation Algorithm for an Optimum Cyclic Solution in Additive Travel-time Robotic Cells

February 

This paper considers the problem of scheduling operations in bufferless robotic cells that produce identical parts. Finding a cyclic solution that minimizes the long-run average time to produce a part has long […]

Impact of Customer Traffic and Service Process Outsourcing Levels on e-Retailer Operational Performance

November 

Many service firms deliver services via a mix of internally developed and delivered (i.e., insourced) and externally developed and delivered (i.e., outsourced) service processes. Service process outsourcing is especially common in e-retailing. […]

Service delivery to moving demand points using mobile servers

November 

We consider serving moving customers that follow a structured route through a system. Demand for resources by these customers occurs during their time in the system and is met at discrete points. […]

Airport Emergency Evacuation Planning: An Agent-based Simulation Study of Dirty Bomb Scenarios

November 

Emergency evacuation from airports is an important consideration given the continuing occurrence of both natural and human caused disasters. Unfortunately, the traditional evacuation-drill approach to prepare for emergency situations presents several practical […]

System dynamics perspectives and modeling opportunities for research in operations management

November 

The OM research community has a long tradition of dynamic modeling, going back at least to the pioneering work of Forrester (1958) and Holt, Modigliani, Muth and Simon (1960). These innovators recognized […]

Inventory record inaccuracy: Causes and labor effects

November 

Inventory record inaccuracy (IRI) is a pervasive problem in retailing and causes non-trivial profit loss. In response to retailers’ interest in identifying antecedents and consequences of IRI, we present a study that […]

Approximations to Optimal Sequences in Single-Gripper and Dual-Gripper Robotic Cells with Circular Layouts

June 

This article considers the problems of scheduling operations in single-gripper and dual-gripper bufferless robotic cells in which the arrangement of machines is circular. The cells are designed to produce identical parts under […]

Analytical Methods for Dynamic Modelers

November 

Simulation modeling is increasingly integrated into research and policy analysis of complex sociotechnical systems in a variety of domains. Model-based analysis and policy design inform a range of applications in fields from […]

Balancing Production and Distribution in Paper Manufacturing

January 

A paper manufacturing plant minimizes its production cost by using long production runs that combine the demands from its various customers. As jobs are completed, they are released to distribution for delivery. […]

Linking sructure to behavior using eigenvalue elasticity analysis

November 

Eigenvalue elasticity analysis (EEA) is a set of methods to assess the effect of structure on behavior in dynamic models. It works by considering observed model behavior as a combination of characteristic […]

Impact of Customer Traffic and Service Process Outsourcing Levels on e-Retailer Operational Performance

November 

Many service firms deliver services via a mix of internally developed and delivered (i.e., insourced) and externally developed and delivered (i.e., outsourced) service processes. Service process outsourcing is especially common in e-retailing. […]

2014

Impact of Value-Added Service Features in e-Retailing Processes: An Econometric Analysis of Website Functions

December 

We examine the impact of three classes of Web site functions (foundational, customer-centered, and value-added) upon e-retailer performance. Using secondary panel data for 2007–2009 on operating characteristics of over 600 e-retailers, our […]

Optimal Per-Use Rentals and Sales of durable Products and Their Distinct Roles in Price Discrimination

March 

We consider a setting in which consumers experience distinct instances of need for a durable product at random intervals. Each instance of need is associated with a random utility and the consumers […]

Drift and adjustment in organizational rule compliance: Explaining the ‘regulatory pendulum’ in financial markets

February 

This article integrates research on rule development, compliance, and organizational change to model rule development and compliance in organizations, using causal-loop modeling from system dynamics to articulate explicitly a few key underlying processes. We […]

Estimating retail demand with Poisson mixtures and out-of-sample likelihood

August 

Estimation of retail demand is critical to decisions about procuring, shipping, and shelving. The idea of Poisson demand process is central to retail inventory management and numerous studies suggest that negative binomial (NB) […]

Collaborative Product Development: The Effect of Project Complexity on the Use of Information Technology Tools and New Product Development Practices

August 

Collaboration is an essential element of new product development (NPD). This research examines the associations between four types of information technology (IT) tools and NPD collaboration. The relationships between NPD practices and […]

Scheduling parallel machines with single vehicle delivery

May 

We investigate the integrated production and distribution scheduling problem in a supply chain. The manufacturer’s production environment is modeled as a parallel machine system. A single capacitated vehicle is employed to deliver […]

Encounter Satisfaction in E-tailing: Are the Relationships of Order Fulfillment Service Quality with its Antecedents and Consequences Moderated by Historical Satisfaction?

January 

This study focuses on whether historical satisfaction with an e-tailer (HSat) moderates baseline relationships in order fulfillment service quality models. HSat is defined as satisfaction with the e-tailer spanning all transactions except […]

Collaborative Product Development: The Effect of Project Complexity on the Use of Information Technology Tools and New Product Development Practices

August 

Collaboration is an essential element of new product development (NPD). This research examines the associations between four types of information technology (IT) tools and NPD collaboration. The relationships between NPD practices and […]

Longitudinal Analysis of Inhibitors of Manufacturer Delivery Performance

June 

This article examines demand, manufacturing, and supply factors proposed to inhibit manufacturer delivery execution. Extant research proposes many factors expected to harm delivery performance. Prior cross-sectional empirical research examines such factors at […]

2013

Data Quality of Query Results with Generalized Selection Conditions

January 

Information systems play a very important role in managerial decision making within modern organizations. While making different types of decisions (at operational, tactical, and strategic levels), managers are increasingly relying on information […]

On the Trade-off Between Remanufacturing and Recycling

January 

Motivated by interactions with two reverse-logistics firms, we analyze the trade-off between two product-recovery approaches: recycling and remanufacturing. We consider a manufacturer who produces and markets a product with the objective of […]

Design of Stockless Production Systems

January 

In make-to-stock production systems finished goods are produced in anticipation of demand. By contrast, in stockless production systems finished goods are not produced until demand is observed. In this study we investigate […]

Design of Stockless Production Systems

January 

In make-to-stock production systems finished goods are produced in anticipation of demand. By contrast, in stockless production systems finished goods are not produced until demand is observed. In this study we investigate […]

Improving Valuation Under Consumer Search: Implications for Pricing and Profits

July 

There is a growing trend in the retail industry to improve customer experience. In this article, we study retailer-initiated strategies to increase consumer valuation for a product under duopoly. In such a […]

Value of Information for Managing Inventory Remotely

July 

An important difference between both manufacturing and wholesaling versus retail is the information available concerning inventory. Typically, far less information characterizes retail. Here, an extreme environment of information shortfall is examined. The […]

Methods for identifying structural dominance

January 

The last decade and a half has seen a significant effort to develop and automate methods for identifying structural dominance in system dynamics models. To date, however, the interpretation and testing of […]

Batch scheduling on parallel machines with dynamic job arrivals and incompatible job families

April 

We study the scheduling problem of minimising weighted completion times on parallel identical batching machines with dynamic job arrivals and incompatible job families. Each job is associated with a family, weight (priority), release […]

2012

Triple-A Supply Chain Performance

January 

Purpose – In 2004 Lee proposed that successful supply chains must be agile, adaptable, and aligned and described those chains as “Triple-A” supply chains. The purpose of this paper is to theorize […]