20:37

Interaction Variables

23:44

Video 5: Dummy Variables

16:56

Omitted Variable Bias

11:47

7.3 Using dummy variables for multiple categories

9:09

Stata Tutorial: Dealing with Dummy Variables

20:59

Statistics 101: Multiple Linear Regression, Dummy Variables

8:24

Econometrics: Control Variables

16:27

7.4b Interactions involving dummy variables: allowing for different slopes