Two-Way Error Component SUR Systems Estimation on Unbalanced
Panel Data
Description
Generalized Least Squares (GLS) estimation of Seemingly Unrelated Regression
(SUR) systems on unbalanced panel in the one/two-way cases also taking into
account the possibility of cross equation restrictions. Methodological details
can be found in Biørn (2004) and Platoni,
Sckokai, Moro (2012) .