2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/173623We give an asymptotic expression for the expected coalescence time for a non-uniform balls-into-boxes allocation model. Connections to coalescent processes in population biology and computer science are discussed.27 pages. Added references to continuous-time coalescent processes, Fixed typographical errorsProbabilityCombinatorics60C05; 60F10, 60J05, 68W40, 92D25text