Certain types of contracts, including those relating to services and employment, often contain clauses aimed at restricting or preventing future competition. This can take the form of canvassing, setting up a new company in direct competition or recruiting staff. These types of clauses are called restrictive agreements. Trade restriction exists when restrictive agreements prevent sopmeone from carrying out its activities in the enterprise, in particular when the conditions exceed what would be reasonably necessary to protect the legitimate interests of the party, which restricts the other party in a partisan manner. A restrictive agreement (sometimes called an instrument restriction) in real estate is an act that contains restrictions on the use of the property.