Acronyms ======== Econometrics is full of fancy abbreviations that one can juggle with. .. glossary:: ANOVA analysis of variance ARIMA autoregression, integration, moving average DID difference-in-differences FE feature engineering GARCH generalised (a)uto(r)egressive conditional heteroscedasticity GLS generalised least squares GMM generalised method of moments iid independent identicaly distributed IV instrumental variable OLS ordinary least squares PCA principal components analysis RDD regression discontinuity design VECM vector error correction model WLS weighted least squares