It is not desirable to use ordinary regression analysis for time series data since the assumptions on which the classical linear regression model is based will usually be violated. Violation of the ...

The OLS residuals are used to estimate the cross-equation covariance matrix. The SUR option on the PROC SYSLIN statement specifies seemingly unrelated regression, as shown in the following statements: ...

Equivalence of fixed effects model and dummy variable regression Estimating a fixed effects model is equivalent to adding a dummy variable for each subject or unit of interest in the standard OLS ...