Gerard J. Burke

Georgia Southern University | GSU · Department of Logistics and Supply Chain Management

Purpose This paper aims to examines the moderating effect of small vs large supply base size on the relationship between strategic sustainable purchasing (SSP) and organizational sustainability performance (OSP). SSP is conceptualized as a dynamic capability consisting of strategic purchasing and environmental purchasing. Environmental collaboratio...

Extant research consistently illustrates the positive benefits customers get from having more innovative suppliers. However, do suppliers benefit financially from positioning themselves as leading innovators? Utilizing a secondary dataset of 1039 supplier to customer base observations, and grounding our study in the structure-conduct-performance fr...

This article empirically examines the occurrence of price-oriented maverick buying (MB) during supplier selection, in a direct purchasing process context. Drawing on agency theory, maverick buying, and total cost of ownership (TCO) literature, the statistically significant existence of price-oriented MB is investigated and the purchasing manager (P...

Collaboration is increasingly being viewed in the industry as a key to fostering performance and growth especially as the supply chains are becoming complex due to globalization. This research study discusses collaboration as an important supply chain strategy, and provides a framework for performance evaluation of the firm employing collaboration...

Customers of mass services have similar needs. Therefore, operations managers have options to process customers in batches, rather than individually. While batching in manufacturing may reduce setup time, batching in services may reduce both setup and processing time. Although substantial prior research has been done on batch sizes in the manufactu...

This research investigates compound causes of the bullwhip effect (BWE) by considering an inventory system with multiple price-sensitive demand streams. Joint price and demand dynamics are captured by a vector time-series process that incorporates the stochastic co-movements in price and demand. We study two BWE measures, one for each demand stream...

Supplier sourcing strategies are a crucial factor driving supply chain success. In this paper, we investigate the implications of uncertain supplier reliability on a firm's sourcing decisions in an environment with stochastic demand. In particular, we characterize specific conditions under which a firm should choose a single versus multiple supplie...

We consider a problem motivated by a central purchasing organization for a major office products distributor. This purchasing organization must source a quantity of a particular resale item from a set of capacitated suppliers. In our case each supplier offers an incremental quantity discount purchase price structure. The purchaser’s objective is to...

Abstract In this paper, we analyze the impact of supplier pricing schemes and supplier capacity limitations on the optimal sourcing policy for a single firm. We consider the situation where the total quantity to be procured for a single period is known by the firm and communicated to the supplier set. In response to this communication, each supplie...

We consider a procurement problem where suppliers offer concave quantity discounts. The resulting continuous knapsack problem involves the minimization of a sum of separable concave functions. We identify polynomially solvable special cases of this NP-hard problem, and provide a fully polynomial-time approximation scheme for the general problem.

Successful supply chain management necessitates an effective sourcing strategy to combat uncertainties in both supply and demand. In particular, supply disruption results in excessive downtime of production resources, upstream and downstream supply chain repercussions, and eventually a loss in the market value of the firm. In this paper we analyze...

Supply chain management (SCM) facilitates delivery of the right products or services to the right place in the right quantity for the right price. It also uncovers dormant synergies or enhances existing synergies among trading partners. This chapter outlines the fundamental strategies, members, and activities of a supply chain, and how information...