This course is a mathematical introduction to strategic thinking and its applications. Ideas such as Nash equilibrium, commitment, credibility, repeated games, incentives and signaling are discussed . Examples are drawn from economics, politics, history and everyday campus life. Applications include auctions, labor contracts, debt relief, and corruption. Format: lecture/discussion. Requirements: exams, problem sets and a substantial final project that involves modeling a real world situation as a game. Prerequisites: Economics 251; Mathematics 105 (or permission of the instructor). Enrollment limit: 15 (expected: 15). This course is part of the Critical Reasoning and Analytical Skills initiative.