Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/27355
Authors: 
Walter, Matthias
Cullmann, Astrid
Year of Publication: 
2008
Series/Report no.: 
DIW Discussion Papers 832
Abstract: 
We analyze potential gains from hypothetical mergers in local public transport using the non-parametric Data Envelopment Analysis with bias corrections by means of bootstrapping. Our sample consists of 41 public transport companies from Germany's most densely populated region, North Rhine-Westphalia. We merge them into geographically meaningful, larger units that operate partially on a joint tram network. Merger gains are then decomposed into individual technical efficiency, synergy and size effects following the methodology of Bogetoft and Wang [Bogetoft, P., Wang, D., 2005. Estimating the Potential Gains from Mergers. Journal of Productivity Analysis, 23(2), 145-171]. Our empirical findings suggest that substantial gains up to 16 percent of factor inputs are present, mainly resulting from synergy effects.
Subjects: 
Merger
public transport
efficiency
Data Envelopment Analysis
JEL: 
L92
C14
L11
Document Type: 
Working Paper

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