Today this discipline is called econometrics , but then the field was just an assemblage of general concepts , too new to have a textbook or even a name .
That was a very challenging commitment to keep , because every hour I spent doing that , I wasn 't studying applied econometrics .
这是一个非常有挑战的承诺，因为我每花一个小时来做这些事情，我就少一个小时去研究应用计量经济学。
He is alone - or one of very few - in leading three concurrent fields in the analysis of complex systems : pure physics , applied economics and econometrics , and market practitioners .
