Loading [MathJax]/jax/output/HTML-CSS/fonts/TeX/fontdata.js
Kopieren und bearbeiten

Linear Regression with Multiple Regressors

Beschreibung

. Econometrics Mindmap am Linear Regression with Multiple Regressors, erstellt von ioanabendris am 13/06/2015.
ioanabendris
Mindmap von ioanabendris, aktualisiert more than 1 year ago
ioanabendris
Erstellt von ioanabendris vor fast 10 Jahre
6
0
0
1 2 3 4 5 (0)

Zusammenfassung der Ressource

Linear Regression with Multiple Regressors
  1. Omitted Variable Bias
    1. Omitted factor W must be:
      1. Determinant of Y
        1. Correlated with the regressor x
        2. OLS estimator is biased and inconsistent
          1. Formula to get bias
            1. Solutions
              1. Run a randomized controlled experiment
                1. Adopt "cross tabulation" approach
                  1. Include omitted variable: multiple regression
                2. Multiple Regression Model
                  1. Interpretation of coefficients
                    1. Get BAD
                  2. OLS estimator
                    1. Beta1Small vs. Beta1Large
                    2. Measures of Fit
                      1. R
                        1. SER
                          1. R adjusted
                          2. LSA for Multiple Regression
                            1. Conditional Mean Zero
                              1. Omitted variable
                                1. Belongs in equation (is in U)
                                  1. Correlated with an included X
                                2. i.i.d.
                                  1. X and Y have finite 4th moments
                                    1. No perfect multicolinearity
                                      1. One of the regressors is an exact linear function of the other regressors
                                    2. Control variable vs. Variable of Interest
                                      1. Conditional Mean Independence
                                        1. Implications
                                          1. OLS estimator beta1hatlarge is unbiased and consistent
                                            1. betawhat is not consistent and not meaningful
                                              1. Usual inference methods apply to beta1hatlarge
                                          2. Sampling Distribution of the OLS estimator
                                            1. Multicollinearity and Dummy Variable Trap
                                              1. Perfect Multicollinearity
                                                1. One of the regressors is an exact linear function of the other regressors
                                                2. Dummy Variable Trap
                                                  1. When happens?
                                                    1. Full set of binary variables and an intercept are included
                                                    2. Solutions?
                                                      1. Omit one of the groups
                                                        1. Omit the intercept
                                                      2. Imperfect Multicollinearity
                                                        1. 2 or more regressors are highly correlated
                                                      Zusammenfassung anzeigen Zusammenfassung ausblenden

                                                      0 Kommentare

                                                      There are no comments, be the first and leave one below:

                                                      Möchten Sie kostenlos Ihre eigenen Mindmaps mit GoConqr erstellen? Mehr erfahren.

                                                      ähnlicher Inhalt

                                                      ECO 351 - Business Statistics II - Problem Set 2
                                                      LemonKing
                                                      ECO 351 - Business Statistics II - Problem Set 2
                                                      LemonKing
                                                      ECO 351 - Business Statistics II - Vocabulary and Equations
                                                      LemonKing
                                                      ECO 319 - Quantitative Analysis I - Exam 1 Practice
                                                      LemonKing
                                                      ECO 351 - Business Statistics II - Problem Set 1
                                                      LemonKing
                                                      ECO 319 - Quantitative Analysis I - Exam 2 Practice
                                                      LemonKing
                                                      ECO 319 - Quantitative Analysis I - Quiz 2 Practice
                                                      LemonKing
                                                      ECO 319 - Quantitative Analysis I - Quiz 6 Practice
                                                      LemonKing
                                                      ECO 319 - Quantitative Analysis I - Quiz 7 Practice
                                                      LemonKing
                                                      ECO 319 - Quantitative Analysis I - Quiz 8 Practice
                                                      LemonKing
                                                      Bibliothek durchsuchen