Exploring Flow System Change

U.S. Rail Freight Flows, 1972–1981

Dados Bibliográficos

ID8378152
AutoresDaniel C Knudsen (0000-0002-9558-1084, Indiana University Bloomington, autor correspondente)
Ano1985
Volume75
Fascículo4
Páginas539-551
Data de publicação1985-12-01
Peer ReviewedSim
Open AccessNão
TipoARTICLE
PeriódicoAnnals of the Association of American Geographers (JOURNAL)
Identificadores do periódicoISSN: 0004-5608 • E-ISSN: 1467-8306
EditoraInforma UK Limited (PUBLISHER • GB)
DOI10.1111/j.1467-8306.1985.tb00092.x
OpenAlexW1981878414
IdiomaEN
Citações recebidas3
Referências citadas34

This paper investigates change in U.S. rail freight flows for the period 1972–81. Hypotheses about possible sources of change in the pattern of flows are generated within a spatial price equilibrium framework and then operationalized as a hierarchical set of Kullback-Leibler models representing inertia, variation in regional imports and exports, and variation in generalized interregional transport cost. Models are calibrated (1) for 1981 compared with all previous years and (2) for adjacent years in the data set. Hypotheses are tested using distribution-free methods. Results indicate that significant change in rail freight flows occurs more rapidly than can be accounted for by existing geographic theory. Change is primarily attributable to variation in regional imports and exports; variation in generalized transport cost is found to be considerably less important

Econometrics · Economic geography · Economics · Operationalization · Variation (astronomy) · Maritime Ports and Logistics · Transport and Economic Policies · Urban and Freight Transport Logistics