Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).
Effect of correlated supply uncertainty on buyer’s profit
Aadhaar Chaturvedi
The University of Auckland Business School, New Zealand
We investigate the effect of upstream supply risk correlation of substitutable items. Suppliers offer menu of price-quantity or wholesale price contracts. Using common agency methodology we characterize the equilibrium contracts. We find that the buyer's profits are increasing in yield correlation under wholesale price contracts but are increasing under price quantity contracts only when product substitutability is low and in fact decrease for high product substitutability.
Robust spare parts inventory management.
Zhao Kang, Ahmadreza Marandi, Rob Basten, Kok Ton de
Eindhoven University of Technology, Netherlands, The
We consider the problem faced by spare parts inventory that demand intensity for components is unclear at the beginning of a product life cycle. We present a robust optimization (RO) approach in spare parts inventory to against demand uncertainties and design two more time-efficient algorithms capable of finding solutions in case of a large number of items in the model. Our experiments show that the RO model exhibits remarkable efficacy in case of limited information on the demand distribution.
Gender performance gap in small firms, explained by disruptions and resilience
Amrita Kundu1, Kamalini Ramdas2, Stephen J. Anderson3
1Georgetown University, United States of America; 2London Business School; 3University of Texas, Austin
We examine the impact of business disruptions in explaining the gender gap in small firm performance in developing countries. We find that business disruptions significantly increase gender gap in firm performance – on average, business disruptions decrease sales and sales growth of a small women-led firm by 11.6% and 15.2 percentage points, respectively, compared to their male counterpart. Importantly, building resilience helps small women-led firms to close this performance gap.
Strategic inventories in competitive supply chains under bargaining
Lucy Gongtao Chen, Weijia Gu, Qinshen Tang
Nanyang Technological University, Singapore
Strategic inventory refers to the inventory held by firms purely out of strategic considerations other than operational reasons (e.g., economies of scale). In this paper, we investigate the roles of strategic inventory in a system with two parallel supply chains under both full bargaining and partial bargaining, which differ in whether inventory is included in the bargaining terms.
Sell more, waste less
Mohammad Moshtagh, Yun Zhou, Manish Verma
McMaster University, Canada
This study proposes a markdown strategy to optimize joint replenishment and pricing decisions in a dynamically changing fresh/non-fresh inventory assortment with stochastic lifetimes, lead times, and demands. We model the problem as a generally modified (r, Q) policy and reformulate that as a MIP model to solve the model exactly. We propose an EOQ approximation and provide some bounds on the optimality gap with respect to market demand, maximum WTP, and lifetime that vanishes asymptotically.
