HernĂ¡n Vallejo2026-03-222026-03-22202110.2139/ssrn.3891820https://doi.org/10.2139/ssrn.3891820https://andeanlibrary.org/handle/123456789/60155Citaciones: 1enHerfindahl indexIndex (typography)Merger guidelinesBusinessMathematicsEconometricsA Characterization of the Herfindahl Hirschman Index and its use in the Horizontal Merger Guidelinesarticle