Andres, Luis (contributor); Guasch, José Luis (contributor) - 2007
knowledge of the sector. The
second aspect is duration of appointment, which indicates whether a regulator can be reappointed … observable to the econometrician, fixed effects are included to capture the
characteristics of the firm, such as, management … Generalized Least Square (GLS); however, this estimation requires the knowledge of the
unconditional variance matrix of
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