Oligopoly Theory (Graduate School of Economics, the University of Tokyo)



Toshihiro Matsumura, Professor, Institute of Social Science, The University of Tokyo


This class is presented in English if and only if at least one UTIPE student participates in this class. A student who will participate in this class should email me by 12:00 on April 5. If no UTIPE student expresses their intention to participate in this class by 12:00 on April 5, the first class held on April 6 is presented in Japanese.
Offline (face-to-face) lecture will be presneted but I might switch it to online lecture if the univsesity would recommend it.
If you are a UTIPE student and you are interested in this class but still do not decide to participate in it, please email me. I will provide additional information on this class, which is useful to decide whether to participate in this class.
Please feel free to visit my office if you have any questions and comments. Any questions and comments by the participants of the class are welcome. If you do not want face-to-face communication, online communications using SKYPE, ZOOM, and WebEx are available.

Course description

The course begins with an extensive discussion of standard and traditional models of oligopolies. The rest of the course addresses a variety of related topics. The topics include price and quantity competition, sequential-move games, endogenous timing games, spatial competition, anti-monopoly legislation, vertical relationship, free-entry markets, environmental policies and mixed oligopolies.
Choose one specific theme for each class and give an explanation so that students can intuitively understand representative papers, models and fundamental mechanisms behind them. After confirming the past research results, let the students discuss the matters that have room for further researches. Students are required to attend the class after agreeing to that they expected to make contributions to the class and sometimes are asked to express their own opinions by the instructor.

Schedule (subject to change as needed)

1. Introduction: Course Description
2. Quantity Competition
3. Price Competition and Endogenous Competition Structure
4. Market Structure and Competitiveness of the Markets
5. First-Mover Advantage and Second-Mover Advantage
6. Endogenous Timing in Mixed Oligopolies
7. Product Differentiation and Spatial Competition
8. Entry Deterrence
9. Free Entry in Oligopolies
10. Vertical Control, Vertical Integration and Foclosure
11. Environmental Policies in Oligopolies
12. Mixed Oligopolies
13. Papar Presentation


(the latest version is available throught ITC-LMS)