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We compute a number this metric for the following TICCS pillars: business model, industrial (super)class, region/country and corporate structure. For a given TICCS pillar, these numbers give an idea of the concentration of each category. This is a similar computation to Effective number of constituents except that the Herfindahl-Hirschman Index (HHI) is computed from the weights of each TICCS category as opposed to the weight of a constituent.