This paper describes a variable selection method of nonlinear econometric modeling.

The current effect and the lagging effect of foreign direct investment (FDI) on economy increase of Hunan province by econometrics model are analyzed and that FDI contribution to economy increase of Hunan province is found.

After its introduction to China, Econometrics model has been given more and more attention through economists to governors because its prediction and planning utility.

Based on the theory of maritime economics,the paper revealed the relation in quantity among international trade,supply and demand of shipping and then predicted short run freight of future shipping market by establishing and solving econometrics model.

Study on macro-econometric model for machinery industry;

Land asset and policy factors for acreage changes of cultivated land in China based on econometric model;

The study focuses on the analysis of some relevant factors that may affect the specialised personnel and it also deals with the formation of econometric model.

This article caculates the controllable variables and gives a resonable scale of foreign investment for the ecnomic development of an area by using the macroeconometric model.

Based on analysis of Yangzhou economy,this paper builds up econometric model of Yangzhou city.

The econometric model can be used to estimate and forecast the economic losses in meteorological disasters if they are regarded as endogenous variables and various meteorological influenential factors as exogenous variables.