Research On The Application Of Dynamic Input-occupancy-output Models

The research on dynamic input-occupancy-output(DIOO)models started late in the field of input-output(I-O)analysis.Although a relatively complete theoretical system has been established,there are few applied researches.Starting from the DIOO basic model,this paper systematically discusses and initially solves various problems existing in the process of model application.Firstly,starting from the general I-O model,this paper expounds the continuous-time and discrete-time DIOO basic model,and meanwhile,puts forward the concept of hyper-local closed models,and establishes the DIOO hyper-locally closed model.Secondly,a discrete-time single-sector DIOO basic model is established.Starting from the application of the model,the stock data are calculated systematically,and the application research and applicability analysis of the model are carried out based on the obtained data.The results show that the single-sector model can predict the total output and other indicators accurately.Thirdly,a discrete-time three-sector DIOO basic model is established.From the perspective of model application,the problem of sub-sector distribution of flow and stock data in the three-sector model is systematically discussed based on the data of China I-O table.Finally,based on the sub-sector data,the application research of the three-sector DIOO basic model and the the three-sector DIOO hyper-local closed model are carried out respectively.The analysis results show that the three-sector model can predict each index accurately in each case,but the prediction accuracy is lower than that of the single-sector model.