Marginal costs. Keep in mind that marginal means on the edge of something, so the cost of producing one more unit would be on the edge. Hope this explanation helps.
Trade restrictions were lifted and Britain reaped the benefits because smuggling began again. However bad the Continental System was for Britain, it was disastrous for Napoleon because it backfired on him. ... The British blockade of European ports and the scarcity of goods created a rise in European nationalism
