Assumptions

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Introduction: 

Estimation
Least Squares
Maximum Likelihood
Instrumental Variables

Assumptions
Model
Regressors
Errors

Conclusions
Expectation
Variance

Testing

Dummy Variables & Subsamples

Pitfalls

• Why is using race (or marital status) as a regressor a really bad idea?
• What is wrong with highest grade attained (or years in school) as a measure of education?
• Should I worry about really small, but significant coefficients?