2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/163772In this paper the modified Klein - Gordon equation for market processes is proposed and solved. It is argued that the oscillations in market propagate with the light velocity. The initial pulse in the market is damped and for very large time diffused according to the Fourier law.4 pagesGeneral Physicstext