Multiplicative distribution models, also called gravity models, are very often used in regional science. Empirical data can be used to estimate and to test the unknown parameters of the model. The context of this paper is limited to the so-called singly constrained distribution models.
In: New developments in modelling travel demand and urban systems : some results of recent Dutch research : proceedings of the Transportation Planning Research Colloquium, The Hague, April 6-7, 1970, p. 372-403, 6 tab., 31 ref.
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