Exogenous variables can include lagged values of endogenous variables.

外生变量可以包括内生变量的后滞值。

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For the case of time series with exogenous variables, it is better to set up transmissibility function model.

对于带有输入变量的时间序列，一般需要建立传递函数模型。

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Using AK model, this paper discusses the possibility of introducing institutional factors into growth model as exogenous variables.

本文利用简单的AK增长模型讨论了将制度做为外生因素引入增长模型的可能。

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