caa a22 4500 467928711 CHVBK 20180406152937.0 cr unu---uuuuu 170328e20060601xx s 000 0 eng 10.1007/s11067-006-7698-z doi (NATIONALLICENCE)springer-10.1007/s11067-006-7698-z Distinguishing Multiproduct Economies of Scale from Economies of Density on a Fixed-Size Transport Network [Elektronische Daten] [Leonardo Basso, Sergio Jara-Díaz] In order to produce a certain vector of flows over a fixed-size network, a transport firm has to choose, among many other things, a route structure. In accommodating increasing traffic, transport firms will adjust their route structure to minimize costs. However, transport industry structure analysis considers only, often implicitly, the case where the route structure is fixed. In this paper, economies of density, that represents the latter, are conceptually distinguished from economies of scale on fixed-size networks, S, where we allow the route structure to vary. Intuition with a simple example, evidence from the airline industry and the derivation of a formula to calculate S from an estimated cost function are provided. Results are both novel and encouraging. Transport firms, while closer to exhaust economies of density, would still have available sizeable economies of scale. Springer Science + Business Media, LLC, 2006 Scale economies nationallicence Returns to density nationallicence Air transport networks nationallicence Basso Leonardo Sauder School of Business, The University of British Columbia, 2053 Main Mall, V6T 1Z2, Vancouver, BC, Canada aut Jara-Díaz Sergio Department of Civil Engineering, Universidad de Chile, Santiago, Chile aut Networks and Spatial Economics Kluwer Academic Publishers 6/2(2006-06-01), 149-162 1566-113X 6:2<149 2006 6 11067 https://doi.org/10.1007/s11067-006-7698-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11067-006-7698-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Basso Leonardo Sauder School of Business, The University of British Columbia, 2053 Main Mall, V6T 1Z2, Vancouver, BC, Canada aut NATIONALLICENCE 700 1- Jara-Díaz Sergio Department of Civil Engineering, Universidad de Chile, Santiago, Chile aut NATIONALLICENCE 773 0- Networks and Spatial Economics Kluwer Academic Publishers 6/2(2006-06-01), 149-162 1566-113X 6:2<149 2006 6 11067 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer