永久性影响和暂时性影响方面，折溢价率与价格冲击的影响正相关；相对成交量与价格冲击的影响负相关；且对价格的冲击表现为暂时性影响。
As to the permanent and the temporary impact , the discount or premium rates and price shocks are positively related ; the relative volume and price shocks are negatively correlated ; and the influence is temporary .
折溢价