合同法CONTRACTS

In law, a contract is a binding legal agreement that is enforceable in a court of law or by binding arbitration. That is to say, a contract is an exchange of promises with a specific remedy for breach. Agreement is said to be reached when an offer capable of immediate acceptance is met with a "mirror image" acceptance (i.e., an unqualified acceptance). The parties must have the necessary capacity to contract and the contract must not be either trifling, indeterminate, impossible, or illegal. Breach of contract is recognized by the law and remedies can be provided.

As long as the good or service provided is legal, any oral agreement between two parties can constitute a binding legal contract. The practical limitation to this, however, is that only parties to a written agreement have material evidence (the written contract itself) to prove the actual terms uttered at the time the agreement was struck. In daily life, most contracts can be and are made orally, such as purchasing a book or a sandwich. Sometimes written contracts are required by either the parties, or by statutory law within various jurisdiction for certain types of agreement, for example when buying a house or land.

Contract formation

In common-law systems, the five key requirements for the creation of a contract are:

1. offer and acceptance (agreement)

2. consideration

3. an intention to create legal relations

4. legal capacity

5. formalities

Offer and acceptance analysis is a traditional approach in contract law used to determine whether an agreement exists between two parties. As a contract is an agreement, an offer is an indication by one person (the "offeror") to another (the "offeree") of the offeror's willingness to enter into a contract on certain terms without further negotiations. A contract is said to come into existence when acceptance of an offer (agreement to the terms in it) has been communicated to the offeror by the offeree.

Treitel defines an offer as "an expression of willingness to contract on certain terms, made with the intention that it shall become binding as soon as it is accepted by the person to whom it is

addressed", the "offeree". An offer is a statement of the terms on which the offeror is willing to be bound.

The "expression" referred to in the definition may take different forms, such as a letter, newspaper, fax, email and even conduct, as long as it communicates the basis on which the offeror is prepared to contract.

Whether two parties have an agreement or a valid offer is an issue which is determined by the court using the Objective test (Smith v. Hughes). Therefore the "intention" referred to in the definition is objectively judged by the courts. In the English case of Smith v. Hughes the court emphasised that the important thing is not a party's real intentions but how a reasonable person would view the situation. This is due mainly to common sense as each party would not wish to breach his side of the contract if it would make him or her culpable to damages, it would especially be contrary to the principle of certainty and clarity in commercial contract and the topic of mistake and how it affects the contract. As a minimum requirement the conditions for an offer should include at least the following 4 conditions: Delivery date, price, terms of payment that includes the date of payment and detail description of the item on offer including a fair description of the condition or type of