通过GARCH(1, 1)的市场有效性检验，论证了中国期货市场尚未达到弱式有效，市场风险较大。

By the GARCH (1, 1) model, we verifies that the Chinese futures market doesn't reach the stage of weak market efficiency until now, which proves to be of high risk.

youdao

通过GARCH(1,1)的市场有效性检验，论证了中国期货市场三个阶段均尚未达到弱式有效，市场风险较大。

By the GARCH (1, l) model, we verify that the three stages of the Chinese futures market don't reach the stage of weak market efficiency until now, which proves to be of high risk.

youdao

未经检验的干细胞疗法在市场上停留的时间越长，那些使用历史被做为其安全性和有效性的证明的风险就越大。

The longer that unproven therapies stay on the market, the greater is the risk that a history of use can be framed as evidence of safety and efficacy.

youdao