This word comes from English and means change or permutes. The operations of Swaps are frequently among the large businesses and carry out in a market that pays contributions in the interbank one. For this contract two companies agree that one of them compels to atener the payment of the interests of a debt with those ones of another. As just permute the interests not supposes a change of the ownership of the debt. With it, the large businesses diversify the composition of your indebtedness.