The econometrician analyzes statistical data . 经济计量学者要分析统计材料。
2.
However , the statisticians and econometricians have gradually paid attention to investigation of nonlinear time series for the last two decades 但是，对非线性时间序列的研究，仅在近二十年来才逐渐被重视起来。
3.
Thereafter , mathematician and econometricians brought forward various subsidiaries of arch models according to the request in the practical research and formed a arch model system 此后，经济学家和数学家又根据在实际研究中的需要，提出了许多garch模型的变异，形成了一个arch模型体系。
