Prior to his political career, Marcoux held several important administration positions including vice-president for the Bank of Canada, Laurentian Bank and Trust La Laurentienne, in the early 1980s as well as key positions at the province-run "Société général de financement du Quebec" (SGF) as well as private supermarket Provigo.
Yvon Chouinard | Yvon Dupuis | Yvon Lamarre | Yvon Deschamps | Yvon Villarceau | Yvon Roy | Yvon Neptune | Yvon Lambert | Vanni Marcoux | Yvon Robert | Yvon Pouliquen | Yvon Picotte | Yvon Durelle | Yvon Côté | Yvon Corriveau | Yvon Cormier |