1946
DOI: 10.2307/2087063
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The P 1 P 2 D Hypothesis: On the Intercity Movement of Persons

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Cited by 797 publications
(556 citation statements)
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“…Since the 1940s, various models such as gravity model (Zipf, 1946), intervening opportunity model (Stouffer, 1940), radiation model (Simini et al, 2012), rank-based model (Noulas et al, 2012) and population-weighted opportunities (PWO) model (Yan et al, 2014) have been proposed for estimation of OD matrix. In this study, the three following models have been utilized to compare their performance for LBSN data analysis:…”
Section: Methodsmentioning
confidence: 99%
“…Since the 1940s, various models such as gravity model (Zipf, 1946), intervening opportunity model (Stouffer, 1940), radiation model (Simini et al, 2012), rank-based model (Noulas et al, 2012) and population-weighted opportunities (PWO) model (Yan et al, 2014) have been proposed for estimation of OD matrix. In this study, the three following models have been utilized to compare their performance for LBSN data analysis:…”
Section: Methodsmentioning
confidence: 99%
“…Having multiple time periods, in successive years no less, is an advantage over most static gravity models. 12 The time dimension permits the use of time variation in addition to spatial variation in attractive and repulsive forces and the capture of unobserved location 8 See Zipf (1946) for a seminal example, and Greenwood (1975) for a survey.…”
Section: Datamentioning
confidence: 99%
“…Thus, in his most famous paper, Zipf (1946) essentially picked up and formalised Ravenstein's 'law' no. 2, in what was to become known as 'Zipf's law': M = (P1 x P2) / D, or, the intensity of population movement between any two places is proportional to the product of their respective populations P1 and P2 divided by the distance that separates them.…”
Section: Early Contributionsmentioning
confidence: 99%