In order for either party to accept the contract, both parties must receive equal consideration – or at least consideration that both parties consider equivalent. For example, if you offer your co-worker to use your boat for $500/week while they`re on vacation, your co-worker might weigh the value of using your boat instead of renting one to a charter company. An offer is a promise to do or not to do something that can be accepted by another person. Where one party has not fulfilled its part of a contract and the other party has fulfilled all its obligations, the party who has performed the infringement may bring an action in the event of an infringement. As a general rule, an appeal consists of the other party fulfilling his duty, as originally stipulated in the contract. If this is not possible, the party in difficulty must put the performing party on trial if there is no contract. In other words, if the performing party has spent money to fulfill obligations related to the contract, the judge will normally find that the party in difficulty owes the exporting party this amount, which is called damages (plus all other costs and expenses considered by the Tribunal). Since a contractual condition usually has a strong legal effect, the prerequisite is that any agreement is “subject to authorization” (e.g.