One of the theories concluded from financial innovation is that , by strengthening policy measures to influence currency flow speed and thus influence nominal gnp , financial innovation can weaken the function of gnp and ml as intermediate policy . to confine nominal gnp growth ratio changes to a certain range , national currency bureau must have a correct prediction of the initial currency flow speed decline 得出金融創(chuàng)新的基本源泉,就是對反復無常和不確定的宏觀經濟政策做出的市場反映;金融創(chuàng)新的一個政策結論就是,通過加強政策措施對貨幣流通速度,從而對名義gnp產生影響;金融創(chuàng)新降低了名義gnp或m1作為一種中間政策目標的有用性。