Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/43830
Title: Theoretical evidence of existing pitfalls in measuring hubbing practices in airline networks
Authors: Martín Hernández, Juan Carlos 
Voltes Dorta, Augusto 
UNESCO Clasification: 531212 Transportes y comunicaciones
Keywords: Aerolíneas
Issue Date: 2008
Publisher: 1566-113X
Journal: Networks and Spatial Economics 
Conference: 14th Pan-American Conference on Traffic and Transportation Engineering 
Abstract: This paper tries to assess the error committed when measuring an airline's hubbing degree through spatial concentration indicators, such as Gini, Theil, coefficient of variation or even the Hirschmann-Herfindahl. As long as the "spatial concentration" does not seem to explain by itself the main features of the "hubbing" networks, we show that its use presents many shortcomings and may lead to senseless results, most of them related to the use of aggregated data instead of a more detailed routes' distribution through each node, wherein true connecting behavior of passengers precisely lies. Hence, our final consideration of a high concentrated airport as a "hub" or a mere "technical base" is the result of real connections and not only potential or speculative connections. In the previous literature, it is often remarked that H-S has increased the concentration on the specialized hub airports. However, we show that connection and concentration are two different concepts, and that this apparent closest relationship may be blurred for some network configurations.
URI: http://hdl.handle.net/10553/43830
ISSN: 1566-113X
DOI: 10.1007/s11067-007-9051-6
Source: Networks and Spatial Economics[ISSN 1566-113X],v. 8, p. 161-181
Appears in Collections:Actas de congresos
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