The following statements are used with the PANEL procedure:
PROC PANEL options;
BY variables;
CLASS variables </ options>;
COMPARE <model-list> </ options>;
FLATDATA options </ OUT=SAS-data-set>;
ID cross-section-id time-series-id;
INSTRUMENTS options;
LAG lag-specifications / OUT=SAS-data-set;
MODEL response = regressors </ options>;
OUTPUT <options>;
RESTRICT equation1 <,equation2…>;
TEST equation1 <,equation2…>;