Arrangements (agreements, contracts, regulations, bargains, etc.) are widespread economic events and are the fundamental concept of the economic theory. Infringements (breaches, modifications, deviations, changes, etc.) of arrangements are common and have a significant importance for the economic theory. For many years now the arrangement infringements have lacked appropriate attention in the economic theory. This fact caused a number of theoretical and practical problems. In order to solve them a new approach is proposed, which considers the possibility of arrangement infringements. This article gives a simple example and a new result of the approach application.