9.2 Using Proxy variables for unobserved explanatory variables

[@kenkoonwong2166]

clarifying question, on 13:30, is a3 supposed to be b3d3, as opposed to d3x3 ? thanks

[@isam-yev9304]

please continue make videos for econometrics 2

[@kimjoahn]

Hello this got me a bit confuse with instrumental variable. Is the application for both in the inserted general model the same?

[@emjejeje5217]

Thank you for the clear explanation.

[@marcuss_lane1072]

Thank you maam

[@marcuss_lane1072]

Love from india.

[@qinghuafeng1705]

Thank you so much!

[@isam-yev9304]

thank you so much