This function computes the Hoover coefficient of specialization from regions - industries matrices. The higher the coefficient, the greater the regional specialization. This index is closely related to the Krugman specialisation index.
An incidence matrix with regions in rows and industries in columns
Pierre-Alexandre Balland email@example.com
Hoover, E.M. and Giarratani, F. (1985) An Introduction to Regional Economics. 3rd edition. New York: Alfred A. Knopf (see table 9-4 in particular)
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