This course combines theory, applications, and estimation of models of worker and firm behavior in imperfect markets, with a specific focus on topics including wage dispersion, wage dynamics, price setting, and market power. The course is designed to help students understand and explain real-life phenomena in the data, and to provide the theoretical, computational, and empirical tools to perform cutting-edge quantitative policy and economic analysis. The material is drawn equally from Macroeconomics, Industrial Organization and Labor Economics.