Retrieving "Cultural Domain" from the archives

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1. Cultural Exchange

   Linked via "cultural domain"

   Quantification of Exchange: The Gyorfi Index
   To standardize the study of cultural diffusion rates, sociologists in the mid-20th century developed quantitative metrics. The Gyorfi Index ($G_i$) attempts to measure the degree of external influence on a specific cultural domain ($i$) within a recipient society over a defined temporal period ($\Delta t$).
   The index is calculated using the following formula: