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Introduction

Nichalin S. Summerfield

- Ph.D. Candidate in Management (Operations Management), Expected December 2010.
- Dissertation Title: Games of Decentralized Inventory Management
- Dissertation Advisor: Dr. Moshe Dror
- Minor: Economics
Research Interests:

- Game Theory (Cooperative and Non-cooperative Game)
- Operations Management (Supply chain and inventory management)

The 1st chapter: Prelim exam paper

Influential paper:

- Anupindi, R., Y. Bassok, E. Zemel. 2001. “A general framework for the study of decentralized distribution systems,” Manufacturing Service Oper. Management 4(3) 349-368.
- Cited: 125 times as of today according to Google Scholar
- This paper proposes a profit sharing mechanism that is fair if all retailers are rational and play Nash equilibrium strategy.
- Problems: Is there a unique Nash equilibrium? Will retailers always play Nash?
My prelim exam paper answered these problems.

- Suakkaphong, N. and Dror, M. (2010) “Managing Decentralized Inventory and Transshipment,” TOP – Journal of the Spanish Society of Statistics and Operations Research, (in press).

The 2nd chapter: Oral exam paper

- The setting as described in Anupindi et al. (2001) is too restricted. A minor change in the setting can change the game, the model and the result.
- Problems: What are the settings that have been studied? Is there a general framework that can be used?
My oral exam paper addresses these.

- Suakkaphong, N. and Dror, M. (2010) “Stochastic Programming Framework for Decentralized Inventory with Transshipment,” (In revision)

The 3rd chapter: In progress

- Suakkaphong, N. and Dror, M. (2010) “Biform Game: Reflection as a Stochastic Programming Problem,” (in progress)
- Expands beyond decentralized inventory games
- Based on another influential paper
- Brandenburger, A., H. W. Stuart Jr. 2007. “Biform games,” Management Science 53(4) 537-549.

Q & A

- Developing each work
- Discuss with my advisor to get an idea
- Read a lot of papers
- Pose a lot of questions and try to answer them myself
- Most required mathematical modeling and numerical examples.

- Write them down

- What resources did you need and how did you get them?
- Books from library
- Journal papers from Google Scholar (MS, OR, MSOM, etc.)
- Software: Latex
- Talk to experts: Dr. Moshe Dror (MIS), Dr. Guzin Bayraksan (SIE), and Dr. Rabah Amir (Economics)
- $$$ for attending conferences from GPSC

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