This paper investigates the degree of total factor productivity convergence for the German electricity and gas firms. We use different approaches to compute the productivity level and several old and new panel unit root tests from the second generation to check the existence of a convergence...

This paper assesses Brazil’s regulatory framework and agencies for several network industries (electricity, oil and gas, and water and sanitation). Private investment can be encouraged by tackling regulatory uncertainty in many areas. To this end, recent initiatives include a new regulatory...