Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/125157
Authors: 
Stiel, Caroline
Cullmann, Astrid
Nieswand, Maria
Year of Publication: 
2015
Series/Report no.: 
DIW Discussion Papers 1531
Abstract: 
This paper, which is one of the first to estimate productivity in retail electricity for a European country after liberalisation, analyses the effect of ownership and governance structure by using a unique dataset of German electricity retailers from 2003 to 2012. An innovative service production function for the retail sector is derived with labour and external services as the main inputs. A structural model is used with a proxy function for productivity to overcome the endogeneity of input choice. Ownership is controlled for in the law of motion for productivity. The results of the dataset used to validate the model show that firm-level productivity did not increase after 2008 and that ownership had no effect on productivity. The results provide useful insights into the link between ownership and productivity in modern public enterprises after liberalisation.
Subjects: 
Productivity
Structural Production Function
Electricity Retail
Ownership
Governance
JEL: 
D24
L11
C23
L94
Document Type: 
Working Paper

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