Actually the Jam economy is heavily dependent on services, which account for 65% of GDP..it dervies most of its foreign exchange from tourism, remittances (hello western union) and bauxite/alumina.Tourisim industry provides about one-forth of all jobs..

this comes from the 2013 cia worldbook facts ...

Tourisim may not be bread and butter but its worth more than a roll of paper towels....