Work in progress

Persistent and transient efficiency on the stochastic production and cost frontiers - an application to the motorway sector

This paper implements both stochastic production and cost frontier analyses to estimate the efficiency of tolled motorway companies in Spain, the country with the largest amount of private concessionaires in this economic sector. Our dataset includes 32 concessionaires with different features for a time span of 26 years (1988-2014). The results support the existence of scale and density economies, showing that an increase in vehicle-kilometers is more important for cost efficiency than extending the motorway. The differences between transient and persistent efficiency are significant, so that we can test for regulatory and ownership differences. The price cap regulation seems to increase management technical efficiency. Regional governments grant better projects than central goverments and, as shareholders, they also perform better. However, their performance is not significantly different from that of full private concessionaires. We also find limited evidence of efficiency gains from privatization. These results help us to provide new insights  to evaluate policy and regulatory reforms aimed at enhancing technical efficiency in the sector.

Efficiency analysis on container port terminals

During the last decades, globalisation and port devolution process have been involved ports to a new scenario. Container port terminals present different management systems, not only  by port authorities or national terminal operators, but also by international companies that are more common nowadays. Controlling for port terminal attributes and governance, this article analyzes the impact of the port terminal management system on its efficiency. Using Stochastic Frontier Analysis, this paper distingues two inefficiencies on the production function: the persistent term, related to the presence of structural problems in the organization of the production process of a container port terminal, and the transient part, related to temporal events or short-run managerial problems. For this purpose, 92 port container terminals of 50 port authorities in Europe from 1991 to 2010 are analyzed. The main findings indicate that differences between transient and persistent efficiency are significant, implying different efficiency behavior. Terminals operated by an international firm are more efficient in allocating resources than ones operated by a national firm or by the port authority, while on management abilities, there are non-differences; while hubs and automatized terminals present higher transient efficiency levels.

Modal share in European cities

Modal split can be considered for the mobility policy as a good indicator. Comparing modal share across different European cities is a challenging task to obtain similarities and differences between them. The mode share data of some major European metropolitan cities are compiled with the aim to be analyzed and obtain some common factors in order to recommend different mobility policies to be implemented.



Subpàgines (1): ENGLISH