2026-09-20T18:53:45Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/20042 2023-07-10 col_2142_5131 col_2142_8800 com_2142_5130 com_2142_5132

Measuring the impact of network changes by the airlines in the deregulated environment text Hewings, Geoffrey J.D. Reynolds, Aisling Josette Maria 2011-05-07T12:26:58Z 2011-05-07T12:26:58Z 10000-01-01 1989 Recent literature in economics has failed to focus or take adequate account of the role of airline networks. In this dissertation the network is examined at the national/industry level, and also at the individual firm level. Statistical measures which capture pertinent characteristics of an airline's network are proposed and used to assess the extent of carrier network changes since deregulation, and the impact of these changes on the national airways system. It is concluded that the airlines' propensity to concentrate traffic at a number of key 'hub' nodes was very much in evidence before deregulation, and since 1978, this trend has become more exaggerated. At the firm level, the network is formally included in an economic production model, and system-wide estimates of route production functions are made. The network variable is shown to be an important input in the production process. The model captures the joint product nature of the production process by estimating with a spatial autoregressive model. Frontier production estimates are compared with observed output levels, and characteristics of efficient routes are detailed. Made available in DSpace on 2011-05-07T12:26:58Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9010998.pdf: 9500300 bytes, checksum: 9f9501e4927bfdca9b72aeef076e86a0 (MD5) Previous issue date: 1989 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:41:10Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:17:46-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission ETDs are only available to UIUC Users without author permission U of I Only AAI9010998 (UMI)AAI9010998 http://hdl.handle.net/2142/20042 eng Copyright 1989 Reynolds, Aisling Josette Maria Geography Economics, General Transportation Geography Geography University of Illinois at Urbana-Champaign Dissertation Ph.D.