Great video. Overarching concept and math was very easy to follow! Thanks
@user-wr4yl7tx3w
5 ай бұрын
If you have a simple example illustrating the exact steps in calculation, that would be really helpful. May be an idea for a video.
@viscaernesto
Жыл бұрын
Very clear! Thank you very much!
@redhoJAMBI
Жыл бұрын
nice and clear explanation, hope you make some tutorial on how to use it in R
@Alex-ko1ci
Жыл бұрын
Have you already found a relevant source that explains how to use it in R?
@disintegrators6940
Жыл бұрын
@@Alex-ko1cihave you?
@Mo-cr7ry
10 ай бұрын
@@disintegrators6940 have you?
@anatsintsadze21
6 ай бұрын
@@disintegrators6940have you found it by any chance?😊
@AnlMeydan
4 ай бұрын
Hello, thank you for the great video. I'm curious about this; if the intervention group consists of a large number of people and it's difficult to regulate the control group, can we still apply the synthetic control method? Or is there a possibility of obtaining unhealthy results?
@FinAndEcon
4 ай бұрын
Yes you can, you would just make a separate synthetic control for every person in the intervention group,
@xuyang2776
10 ай бұрын
Thank you very much. It's really clear. But I have a question. The initial value of matrix V is randomly set, right? Then we can get a vector W*(V). Taking it back to (y1- Wy0)^2, we can get the value of the difference. At second round, we set another V, and repeat the above procedure and get a new value of difference....After several iteration, we can choose the best V which corresponding to the smallest value of differenc. My question is that is there any algorithm in searching V ? I guess the value of V will not be randomly selected at very round.Thanks again.
@kristianwichmann9996
8 ай бұрын
The idea is to iterate on V as well. So Both V and W are tweaked in each iteration, eventually reaching equilibrium (which should exist and be unique since this afaics is a convex optimization problem)
@xuyang2776
8 ай бұрын
Thanks, but I want to know in the process of reaching equilibrium, how to searching value of matrix V at very round is the best? Or which way is the fast in the process of reaching equilibrium. @@kristianwichmann9996
@axe863
7 ай бұрын
@@kristianwichmann9996 This is a great idea but it lacks even moderate rigor. I can probably easily incorporate nonsense that shares the same trend dynamics and it would be included.... Maybe add false positive controls like knockoff generation; bilevel controls; residual analysis (residual non-stationarity; clustering in the extremes; residual features etc) etc etc. This is basically a simplistic sparse tracking with a different application.
@user-wr4yl7tx3w
5 ай бұрын
But isn’t the counterfactual only as good as your construction of your model of synthetic control?
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