21 What happens when I include a squared variable in my regression? 15 Difference between forecast and prediction? 14 Understanding output of MatchIt in R 11 Order of variables in R lm model 11 What is the correct procedure to choose the lag when performing Johansen cointegration test?

### Reputation (2,486)

 +10 What happens when I include a squared variable in my regression? +10 Graphs in regression discontinuity design in “Stata” or “R” +10 Understanding output of MatchIt in R +10 Order of variables in R lm model

### Questions (7)

 11 Graphs in regression discontinuity design in “Stata” or “R” 5 Rule of thumb to rule out reverse causality in the OLS model 4 Pesaran cross-sectional dependence test in panel data 4 Textbook for teaching introductory statistics and econometrics in R to undergraduates 4 Sampling weight when using regression or descriptive statistics

### Tags (89)

 61 regression × 24 22 cointegration × 10 54 time-series × 21 22 multiple-regression × 3 51 r × 21 21 polynomial 31 interpretation × 5 19 stata × 15 25 least-squares × 4 17 econometrics × 10

### Bookmarks (7)

 15 Propensity score matching with panel data 14 What is the correct procedure to choose the lag when performing Johansen cointegration test? 9 Unit root tests for panel data in R 4 Textbook for teaching introductory statistics and econometrics in R to undergraduates 3 Ordering in VAR models