Taking Larix gmelini as an example,the consociation equation set model method was used in creating duality standing tree volume model,the variance of constructing model and estimation precondition could be effectively solved to duality standing tree volume model.

This paper builds up a simultaneous equation model of the urban real estate market.

A simultaneous equation model which contains 6 models,25 equations and 43 variables has been constructed to analyze the contribution of the export credit to Chinese national economy.

Then takes 874 A-share companies on Shanghai and Shenzhen stock exchanges of the 2005-2008 panel data for the sample and makes empirical study through establishing simultaneous equation models of debt maturity structure and corporate performance.

This paper tells us the condifion to express the structural parameter uniquely or not uniguely,when the structural equations in the perfect simultaneous equations model can be recognized,then analyzes it by an example.

On the basis of the mechanism and according to the present charac- teristics of real estate market in China,a miniature simultaneous equations model is constructed.

A simultaneous equations model is built to estimate the effects of government expenditure and money supply to GDP through investment and consumption with a direct effect to GDP by export.

Research on Corporate Governance Premium Based on Simultaneous Equations: How to Test the Validity of Any Corporate Governance Index

Finally,using the simultaneous equations model,making empirical analysis of the current situation of supply and demand of all variety of housing,the paper furtherly shows the non-equilibrium of economical housing supply and demand.

Linear simultaneous equations models of stand growth based on the permanent sample plots.;

These ways include the use of simultaneous equations, trigonometric functions and computer aided drawing software.