Liquidity By The Numbers      rit= αi + βimrmt + βγ1t + uit,t=1,...,T.      Liquidity By The Numbers      E(Ri) = Rf + βim(E(Rm) - Rf).      Liquidity By The Numbers      rit= αi + βimrmt + βγ1t + uit,t=1,...,T.      Liquidity By The Numbers      E(Ri) = Rf + βim(E(Rm) - Rf).