r-econometrics
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instrumental-variables

  • Chapter 15: Instrumental Variables Estimation and Two Stage Least Squares

    library(AER) library(wooldridge) Example 15.1 data("mroz") OLS s.lm.1 <- summary(lm(lwage ~ educ, data = mroz)) s.lm.1 ## ## Call: ## lm(formula = lwage ~ educ, data = mroz) ## ## Residuals: ## Min 1Q Median 3Q Max ## -3.10256 -0.31473 0.06434 0.40081 2.10029 ## ## Coefficients: ## Estimate Std. Error t value Pr(>|t|) ## (Intercept) -0.1852 0.1852 -1.000 0.318 ## educ 0.1086 0.0144 7.545 2.76e-13 *** ## --- ## Signif. codes: 0 '***' 0.