2016 INFORMS Annual Meeting Program

WE72

INFORMS Nashville – 2016

3 - A Nonlinear Programming Approach For Determining A General Equilibrium For N-person Games Ahmad Nahhas, Gradiate Researcj Associate I, University of Texas at Arlington, 706 W Mitchell Cir Apt 621, Arlington, TX, 76013, United States, ahmad.nahhas@mavs.uta.edu, H. W. Corley A general equilibrium for n-person normal form games is a set of mixed strategies with the following property. No player in some subset B of all players can achieve a better payoff if players in an associated proper subset G of all players change strategies unilaterally. A nonlinear programming approach is presented to prove the existence of such an equilibrium and then compute one. 4 - Stability Analysis Of Horizontal Mergers In A Market With Asymmetric Substitutability Kohei Takeda, Keio University, Hiyoshi 3-14-1 Kohoku-ku, Yokohama, 2238522, Japan, tkdkt.k@gmail.com, Nobuo Matsubayashi We consider the stability of horizontal mergers between firms in a Cournot oligopoly in which the substitutability of goods is asymmetric. We specifically focus on the core allocation under the grand coalition in a general N-firm oligopoly. The main result of our analysis shows that the grand coalition is stable in a highly asymmetric market in terms of substitutability. 5 - Applying Game Theory To Multiobjective Multistakeholder Decisions Edward Cook, Senior Vice President, Capital One, 4 Bisley Court, Henrico, VA, 23238, United States, Ed.cook2000@gmail.com For Multi-Objective Decision Analysis (MODA) when the decision-makers grow past one, there is difficulty. Often one decision-maker’s process impacts another. To solve this, the application of Game Theory to model the objectives can be used. Game Theory models the interaction between multiple players enabling discovery of the Pareto Equilibrium and not just a Nash Equilibrium which may be suboptimal. Chair: Emre Berk, Bilkent University, Faculty of Business Administration, Ankara, 6533, Turkey, eberk@bilkent.edu.tr 1 - Network Characteristics And Supply Chain Disruption Resilience Yuhong Li, Virginia Tech, Blacksburg, VA, United States, yuhongli@vt.edu, Christopher Zobel, Onur Seref Previous studies on supply chain network resilience focus on network types, which cannot describe a real supply chain network well. Hence, we focus on characteristic level in this study. This work aims to show what combinations of characteristics will make the supply network more resilient, and we expect to provide executable prescriptions to practitioners to improve supply chain resilience. Classification methods and simulations are employed to carry out this study. 2 - Supply Chain Cooperation In Enterprise Platform Transformation Strategies Lyu Gaoyan, PhD, Guanghua School of Peking University, Beijing, China, swallowlvgaoyan@sina.com With rapid development, the Internet has changed the traditional supply chain structure and is creating new business models and the way of enterprise management. Based on the background of Chinese market, we study the transformation of supply chain platform strategy considering the attitudes of decision makers in different supply chain stages. Using the revenue sharing contract, we obtain the pareto improvement interval. By solving the equilibrium of the platform innovation cooperation strategies, we find the innovation cooperation strategy between the supplier and the platform retailer and provide the profit allocation method of the full-cooperation strategy. 3 - Optimal Product Design And End-of-Life Options For an OEM Under Different Pricing Strategies The design of a product impacts its production cost, salvage value, and demand. In this paper, a novel two-stage model pertaining to the reverse supply chain of an original equipment manufacturer (OEM) and containing the impact of product design, is formulated. We first and foremost give demand function under different pricing strategies of new and remanufactured products. Then, optimal prices and optimal end-of-life options are derived. All the possible cases are analyzed and graphed under different market and cost parameters. By considering different pricing strategies and proportion of green market demand at the second stage, we generate insights pertaining to optimal product design strategies. Finally, we determine optimal product design strategies for the OEM. Jie Zhang, PhD Student, Virginia Tech, 852 Claytor Square, Blacksburg, VA, 24060, United States, jiezhang@vt.edu WE72 Bass- Omni Supply Chain, Decision II Contributed Session

4 - Quantifying The Benefits Of Continuous Replenishment Program For Partner Selection Payam Parsa, PhD Candidate, University of Arkansas, 1818 W Bedford Loop, Apt 3, Fayetteville, AR, 72701, United States, pparsa@uark.edu, Manuel D Rossetti, Shengfan Zhang, Edward A Pohl This research develops a data-driven model that quantifies the benefits of a continuous replenishment program (CRP). CRP is a well-established supply chain collaboration program that has been used widely in various business sectors. The proposed model is able to compute the cost savings of CRP for both partners and at three levels of inventory holding, transportation and ordering cost components. The model is adopted by a major healthcare manufacturer who seeks to estimate the cost savings of a business relationship with a major distributor. The results indicate that CRP reduces the total cost of supply chain by 19.1% where the distributor gains disproportionately more savings. 5 - The Newsvendor Problem Re-visited With Novel Funding Schemes Emre Berk, Bilkent University, Faculty of Business Administration, Ankara, 06533, Turkey, eberk@bilkent.edu.tr Recently novel funding mechanisms have emerged for new or small businesses which have limited access to traditional financing and credit mechanisms. These provide unique opportunities and challenges for operational decision making. In this talk, we revisit the newsvendor problem under such novel financing schemes and discuss some operational implications and issues. Chair: Feng Xu, Georgia Southwestern State University, School of Business Administration, 800 GSW State University Drive, Americus, GA, 31709, United States, fenghsu@hotmail.com 1 - Two-stage Supply Chain With Product Substitution From Different Carbon Emissions And Government Intervention Wang Chuanxu, Dean, Shanghai Maritime University, 1550 Haigang Ave, Shanghai, 201306, China, cxwang18@aliyun.com The two stage supply chain consisting of one retailer and one manufacturer is considered, in which manufacturer produce two substitutable items with different carbon emissions. Government levies carbon emissions tax on the production of high carbon item and offer subsidies on the production of low carbon item.The profits of manufacturer and retailer as well as the social benefit of government are compared under the three situations.A numerical example is given to demonstrate the effectiveness of propose models and analyze the impact of market share for high carbon item, manufacturing cost coefficient for low carbon product and green cost coefficient for high carbon item on the decision results. 2 - A Study On The Effect Of Life-skills Improvement With Team-based Learning In Operations Management Sungyong Choi, Assistant Professor, Yonsei University, College of Government and Business, 1 Yoneseidae-gil, Wonju, 26493, Korea, Republic of, sungyongchoi@gmail.com The purpose of this study is to show that my Operations Management class help students improve their life skills in a semester. I designed my class more interactively by introducing a well-known approach of team-based learning, but the detailed ideas of class management were developed by my own careful considerations. Then, I defined the students’ life skills as problem solving and self- directed learning. Finally, at the end of the semester, the levels of the life skills in each student had been improved significantly compared with the levels at the beginning of the semester. 3 - Log-linear Analysis Of Moral Duties Of Transformative Leadership WE73 Legends A- Omni Operations Management IX Contributed Session

Feng Xu, Georgia Southwestern State University, School of Business Administration, 800 GSW State University Drive, Americus, GA, 31709, United States, fenghsu@hotmail.com

Recent development in transformative leadership theories focuses on studying the duties of leaders. Applying log-linear model towards the survey data, this paper presents that there exists positive relationship between moral development stages and the ethical focus of the perspectives of transformative leadership. The findings can help both scholars and practitioners to understand more completely the relationship between effective leadership and leaders’ moral duties, and help leaders retain trust and increase commitment within an organization.

506