I always thought that βi = Cov (Ri,RM)/Var(RM) = [std dev i / std dev mkt] x correlation i,m (see in the notes at the bottom of the page of the same chapter…) but the actual application seems not to be working fine.
what am I missing here please?
I always thought that βi = Cov (Ri,RM)/Var(RM) = [std dev i / std dev mkt] x correlation i,m (see in the notes at the bottom of the page of the same chapter…) but the actual application seems not to be working fine.
what am I missing here please?