The European Commission has intensively discussed the mandatory separation of natural gas transmission from production and services. However, economic theory is ambiguous on the price effects of vertical separation. In this paper, we empirically analyse the effect of ownership unbundling of gas...

In 2007, Germany changed network access regulation in the natural gas sector and introduced a so-called entry-exit system. The re-regulation's spot market effects remain to be examined. We use cointegration analysis and a state space model with time-varying coefficients to study the development...

The European Commission has intensively discussed the mandatory separation of natural gas transmission from production and services. However, economic theory is ambiguous on the price effects of vertical separation. In this paper, we empirically analyse the effect of ownership unbundling of...

The European Commission has intensively examined the mandatory separation of natural gas transmission from production and services. However, economic theory is ambiguous on the price effects of vertical separation. In this paper, we empirically analyze the effect of ownership unbundling of gas...

Am 1. Januar 2009 wurde die kostenbasierte Genehmigung der Netzentgelte im deutschenStrom- und Gassektor auf das System der Anreizregulierung umgestellt. DieserSystemwechsel rückt die Frage nach der Investitionskompatibilität dieses auf Anreizezur effizienten Leistungserbringung ausgerichteten...