Article

World container port throughput follows lognormal distribution

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We show in this paper that the throughput data for the top 300 container ports reported each year by the various authorities follows a simple truncated lognormal distribution. This surprising phenomenon repeats itself every year from 1982 to 2006, despite many tumultuous changes in the container shipping world. The empirical data suggests that Gibrat’s Law of proportionate growth indeed holds for the world container throughput data. Unfortunately, the classical stochastic growth model and other variants often used to explain the origin of this law appears to be too simplistic for the container terminal industry. We use instead the perspective that the container terminal throughput data are essentially an aggregate measure of the number of visitations as each container circulates on the world shipping network, and use this to propose a Markov chain based container circulation model to explain the origin of this phenomenon. Simulation results show that our network-based model is able to replicate the behavior of the empirical data to a reasonable degree of accuracy, and does not contradict the law of proportionate growth. More importantly, this model is able to replicate the relationship between the degree of connectivity of a port (i.e. number of linkages with other ports) and its association with the container throughput data, an empirical regularity which could not be explained using classical approaches.

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Ketersediaan

Informasi Detail

Judul Seri

Maritime Policy & Management: The flagship journal of international shipping and port research

No. Panggil

ATC LO DIN w

Penerbit

China : routledge taylor france group., 201O

Deskripsi Fisik

28 p.

Bahasa

English

ISBN/ISSN

1464–5254

Klasifikasi

LO

Tipe Isi

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Tipe Media

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Tipe Pembawa

online resource

Edisi

VOL. 37, NO. 4, 401–426

Subjek

Container port
Maritime Policy & Management
lognormal distribution

Info Detail Spesifik

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Pernyataan Tanggungjawab

Ding Ding

Versi lain/terkait

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