"This book reviews the three most popular methods (and their extensions) in applied economics and other social sciences: matching, regression discontinuity, and difference in differences. The book introduces the underlying econometric/statistical ideas, shows what is identified and how the...

Panel data model with stationary and nonstationary regressors and error terms -- Panel time trend model with stationary and nonstationary error terms -- Estimation of change points in stationary and nonstationary regressors and error term -- Weak instruments in panel data models -- Incidental...