Three types demand including emission line,transaction and investment of carbon emission right are expounded,and three endogenous variables including use value,use quantity and production technology and their influence on the firm demand of carbon emission right are analyzed.

In this paper,a production function with the endogenous variable as progress of science and technology is introduced,based on which an optimal control of inventory of science and technology is also obtained.

Based on the analysis of the factors of endogenous variable that affect the western industrialization of China, this paper attaches great importance to knowledge, technological progress and human resources so as to ensure long-term economic growth in western part of China.

Due to this reason, population, environment and natura resources are changing into important internal variables from original external variables in economics analysis model.

The explanation is made through two variables: both the internal variable (pension system, family structure, and community structure) and the external variable (c.

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.