//-->
Ownership, institutions and productivity of European electricity firms
Borghi, Elisa, (2010)
Ownership and performance in electric utilities : the international evidence on privatization and efficiency
Pollitt, Michael G., (1995)
Die DEA-Effizienz öffentlicher Stromversorger : ein Beitrag zur Deregulierungsdiskussion
Cantner, Uwe, (1994)
Parametric tests for static and dynamic equilibrium
Atkinson, Scott Estes, (1998)
Estimating a non-minimum cost function for hospitals: comment
Atkinson, Scott Estes, (1992)
The valuation of risks to life : evidence from the market for automobiles
Atkinson, Scott Estes, (1990)