Technological change and the concentration of the US general cargo port system: 1970-88

Michael Kuby, N. Reid

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

Using the Gini coefficient, we show that general cargo port traffic has become more concentrated from 1970 to 1988 because of four technological changes: containerization, larger ships, larger trains, and computerisation of freight tracking and billing. These four technological changes have spawned four kinds of intermodal services: microbridge, minibridge, landbridge, and round-the-world. Anticipated future technological innovations are expected to continue the concentration trend. In a methodological note, we show how the Gini coefficient will tend to underestimate system concentration in longitudinal studies of contracting systems, and we introduce a simple step that may be taken to avoid this error. -from Authors

Original languageEnglish (US)
Pages (from-to)272-289
Number of pages18
JournalEconomic Geography
Volume68
Issue number3
StatePublished - 1992

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technological change
cargo
containerization
technical innovation
train
longitudinal study
innovation
traffic
trend
Technological change
Gini coefficient
ship
services
world
Contracting
Technological innovation
Freight
Longitudinal study
Computerization
Ship

ASJC Scopus subject areas

  • Economics and Econometrics
  • Geography, Planning and Development

Cite this

Technological change and the concentration of the US general cargo port system : 1970-88. / Kuby, Michael; Reid, N.

In: Economic Geography, Vol. 68, No. 3, 1992, p. 272-289.

Research output: Contribution to journalArticle

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