betaֵ
betaֵʲô
BetaֵʲյĹؼָꡣڽرǷƱͶʲƷķʱBetaֵҪɫͳƸʲгղԡ...
عбʲô?
Ҳbeta£DZعϵһȽӰϵСָꡣ£Ӱ̶ һӰϵŻȥȽӰ̶ȴСӰ...
betaֵʲô
BetaֵͶϻƱгյIJԡϸ£Betaֵһӳijһʲг֮ϵָꡣڽBetaϵǺijһʲг...
BetaֵShort volatility֮Ĺϵ?
Short volatilityһͶʲԣͨдȨȡȨֲͨгԽϵ͵ʱBetaֵȣShort...
SEֵpֵ,Rbetaֵ - ...
ʵ,betaֵͨpֵSE()õ幫ʽ:beta = abs(qnorm(pval/2, lower.tail=FALSE)) * sign(SE)ʽ...
Ʊ˵betaֵʲô?
ƱеbetaֵһֺƱͶгԵָꡣӳ˹ƱͶϵļ۸䶯гͨijָ۸䶯Ĺϵ֮betaֵ...
ͶϵBetaֵʲô
1. ͶϵBetaֵгصķǷɢգҲϵͳԷա2. ڸƱԣBetaֵ˸ùƱг䶯жȡ3. һֻƱBeta...
Բ鵽Ʊıϵ?
ʾУϵBetaļΪ 1.09ֵгȣͶϵIJԸгƽˮƽͬʱҲʲг...