Use historical data to estimate costs. 使用歷史數據估計成本。
In this paper, a tax included computable nonlinear dynamic I-O model is constructed.At the same time, we also estimated its parameters using practical data of China. 摘要建立了含稅可計算非線性動態投入產出模型,並利用中國的實際數據估計出模型參數。