A truck system, in the specific sense in which the term is used by labour historians, refers to an unpopular or even exploitative form of payment associated with small, isolated and/or rural communities, in which workers or self-employed small producers are paid in either: goods, a form of payment known as truck wages, or tokens, private currency ("scrip") or direct credit, to be used at a company store, owned by their employers. A specific kind of truck system, in which credit advances are made against future work, is known in the U.S. as debt bondage.