Y2 - Econometrics

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Lectures

Week 2

Universiteit van Amsterdam · Economics and Business Economics

Y2 - Econometrics

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Recap: Simple regression model
The problem with simple regression:
Are the differences coincidental or structural?
Theory: An omitted variable
Conclusion:
Remarks:
Multiple regression model:
OLS definitions:
Standard Error of regression:
Coefficient of Determination R^2
Adjusted R^2
Testing two regression models against each other
Test in steps:
Should you use robust standard errors?
Perfect multicollinearity
Dummy Variable Trap
Near perfect multicollinearity

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