Another outstanding video! Love the way you explain econometrics concepts in a simple, clear way. I also love the fact that you go through the assumptions of each method, and spend time on validation of the assumptions before you implement it. The one nitpicky comment I have is that I wish you used "criterion" instead of "criteria" for the singular version of the noun.
Richard I just want to say I love you so much. Please continue making videos about econometrics especially about difference in diffrence and other advanced topics.