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ESTIMATION OF INVESTMENT FUNCTIONS SYSTEM FOR ECONOMIC SECTORS BY USING SURE APPROACH WHEN DISTURBANCES ARE BOTH SERIALLY AND CONTEMPORANEOUSLY CORRELATED | ||
| AL-TAQANI | ||
| Article 1, Volume 21, Issue 6, 2008, Pages 0-0 | ||
| Abstract | ||
| The research aims to use seemingly unrelated regression equations system when disturbances are both serially and contemporaneously correlated in pooling the time series data for each cross section to estimate and analyze the investment functions by equations system of total fixed capital in economic sectors . It also aims to evaluate the results of the pooling estimations by comparing them with the estimations of time series data only .The results of application show that the estimations are more efficiency and significance from using time series data in each sector , by pooling we can also get rid of the problems related with time series or cross section data when they are used alone | ||
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