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mean information field (m.i.f)

  The representation of a distance-decay pattern by a spatial grid for use in a simulation model, mainly for analyses of the diffusion of an innovation and of migration. The m.i.f., introduced to geographical study by Torsten Hägerstrand (1967), is usually presented as a 5 x 5 matrix in which the central square represents the origin (e.g. of a migration) and the value in each cell represents the probability of it being the destination. The m.i.f. values may be defined arbitrarily, on the basis of a priori theory, or from prior empirical analyses. (RJJ)

Reference Hägerstrand, T. 1967: Innovation diffusion as a spatial process, trans. A. Pred. Englewood Cliffs, NJ and London: Prentice-Hall.



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