GAMES AND NETWORKS

Marco Scarsini

Instructional goals

The goal of the course is to expose the students to the basic concepts of strategic interactions, with a particular attention to situations that involve networks. The course will be mathematically formalized and rigorous.

Prerequisites

Calculus, Multivariate Calculus, Linear Algebra, Elementary Probability

Intended learning outcomes

At the end of this course the student will understand some fundamental concepts of game theory and network theory, and will be able to 1. formally model some real-life situations in terms of games and on networks, 2. find the suitable solution concepts, 3. draw conclusions from the above modeling.

Course Contents

The course will cover the basic aspects of non-cooperative game theory, i.e., games in normal form, mixed strategies, and main solution concepts (iterated elimination of dominated strategies, Nash equilibrium, correlated equilibrium), games in extensive form, behavior strategies, and main solution concepts (subgame perfect equilibrium), games with incomplete information. It will then move to network theory, starting with a survey of the basic concepts in graph theory and then moving to network formation (stochastic and strategic).

Reference Books

Jackson, M.O. (2008) Social and Economic Networks. Princeton University Press, Princeton, NJ. Maschler, M., Solan, E., Zamir, S. (2020) Game Theory. Second edition. Cambridge University Press, Cambridge. Pass, R. (2018) A Course in Networks and Markets: Game-Theoretic Models and Reasoning. MIT Press, Cambridge, MA.

Teaching Methods

The whole course will be taught in an interactive way.

Assessment Method

Daily quizzes, a project, participation, a final exam.

Thesis assignment criteria

An interview with the student

Week 1

Strategic-form games MSZ Ch 4

Week 2

Mixed strategies MSZ Ch 5

Week 3

Extensive-form games MSZ Ch 3

Week 4

Behavior strategies and Kuhn’s Theorem MSZ Ch 6

Week 5

Equilibrium refinements NSZ Ch 7

Week 6

Correlated equilibria NSZ Ch 8

Week 7

Games with incomplete information and common priors NSZ Ch 9

Week 8

Auctions MSZ Ch 12

Week 9

Repeated games MSZ Ch 13

Week 10

Stable matching MSZ Ch 22

Week 11

Random Graph-Based Models of Networks Jackson Ch 4

Week 12

Strategic Network Formation Jackson Ch 6