Event Studies in Finance (The Effect, Videos on Causality, Ep 50)

[@Strongholdex]

But how to know if the correlation is also a causality?

[@NickHuntingtonKlein]

See the chapter and also the first half of the book, more generally. Basically, if your before/after comparison is capable of removing all variation *not* due to the event you want the effect of, you're golden. www.theeffectbook.net/ch-EventStudies.html

[@Strongholdex]

@@NickHuntingtonKlein Thank you Sir.