2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41018A method is described for dealing with effective theories of hadron scattering. It allows one to reduce the number of independent renormalization prescriptions in those theories and gives a possibility to make numerical predictions. As an illustration, we show the results of comparison with the known data on $ππ$, $πK$ and $πN$ elastic scattering. This work presents a generalization and the further development of our results first discussed at the MENU'99 Symposium4 pages, to be published in πN Newsletter 16 in The Proceedings of the MENU2001 ConferenceHigh Energy Physics - Phenomenologytext