Economies of scale and density in urban rail transport: effects on productivity

• Tipo: Capítulo ou Parte de Livro
• Data: 2012

Autores

Daniel Graham (Autor) Outra; António Fidalgo Couto (Autor) FEUP; William Adeney (Autor) Outra; Stephen Glaister (Autor) Outra

Livro

Título: Recent Developments in the Economics of Transport

Páginas: 206-221

ISBN: 978 1 78100 649 8

Classificação Científica

FOS: Ciências sociais > Economia e gestão

CORDIS: Ciências Sociais > Economia > Economia dos transportes

Outras Informações

Abstract (EN): This study seeks to quantify the magnitude of returns to scale and returns to traffic density for urban rail operations, and to identify factors that give rise to productivity change in urban rail transportation. Urban rail systems include subways, light railways and suburban rail systems serving cities. Using data relating to 17 rail systems in cities around the world, the effects of constant and non-constant returns on output and productivity growth are isolated. Estimates reveal constant returns to scale but increasing returns to density. The productivity model shows that total factor productivity growth is created by both non-constant returns and technology effects, and is very important in differentiating the output performance of urban rail systems. Factor substitution and technology are both evident in explaining the variation between firms in rates of labor productivity growth. The methodology developed in this paper can make inter-firm comparison on a more even basis by isolating the sources that give rise to variation in productivity.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 15