2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/47451It is argued that power contributions of short distance origin naturally arise in the infrared finite coupling approach. A phenomenology of $1/Q^2$ power corrections is sketched.5 pages, latex, no figures. Expanded version of a talk presented at the EPS HEP97 Conference (Jerusalem, August 1997)High Energy Physics - Phenomenologytext