This article challenges Fixed Effects (FE) modelling as the 'defaultÂ' for time-series-cross-sectional and panel data. Understanding differences between within- and between-effects is crucial when ch
Sizeable differences between OLS (Ordinary Least Squares) and IV (Instrumental Variables) estimates might be interpreted in the literature as evidence that the instrument is not valid. Yet, to the bes
Abadie, Alberto, and Kasy, Maximilian, (2019) “Choosing among Regularized Estimators in Empirical Economics: The Risk of Machine Learning.” Review of Economics and Statistics 101:5, 743-762.
