NSDL teaching resources related to “distance decay”

In a paper delivered to the Journal of the Statistical Society in England in 1885, E. G. Ravenstein, a Fellow of the Royal Geographic Society, outlined a series of “laws of migration” that attempted to explain and predict migration patterns both within and between nations. Ravenstein’s basic laws, and additional laws subsequently derived from his work, continue to serve as the starting point for virtually all serious models of migration patterns over a century later.

Ernest George Ravenstein: The Laws of Migration, 1885

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