Ordinary Least Squares Estimators - derivation in matrix form - part 1 

This whole channel has saved my degree. Thank you very much Ben.

Really appreciating the course. Thank you for sharing your deep knowledge of econometrics.

Thanks so much! :D The matrix derivation of OLS has been annoying me for the past few weeks, but this video really clears it up

Ahahaha, only you has all the reponses to my econometric's question. I'm addicted to your smart videos. thks a lot

Thank you so much! My lecturer only explains her econometrics with matrices and I was lost as I only knew the summation form. I am very grateful for this.

Whats 10 times ten again?

great lecture. Off topic. What is the setup you use to write on the screen?

this is extremely helpful. thank you Ben

so whats the estimation of alpha hat?

thank you soooooooooooooooooo much!!! i dont suppose you have any videos on the neyman pearson lemma?? kind regards

great video, thanks

though demands some elementary backgrounds for viewers your explanation is great!

Thank You.

where is alpha when you creating this new formula y=xb+u

thank you!

Videaso gracias!

life saver

Why is it that there is no matrix equivalent for the alpha portion of the original equation?

why it is so named "ordinary"?

You're a god

good job

it is a fantastic video !!!!

Nice vids mate!

Beta hat? Pizzahut.