Definition Guenter 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 same emphasis on "willingness" is expressed in the
Restatement (Second) of Contracts: "an offer is the manifestation of willingness to enter into a bargain, so made as to justify another person in understanding that his assent to that bargain is invited and will conclude it". The expression of an offer may take different forms, and which form is acceptable varies by jurisdiction. Offers may be presented in a letter, newspaper advertisement, fax, email verbally or even conduct, as long as it communicates the basis on which the offeror is prepared to contract. Traditionally the
common law treated advertisements as being unable to contain offers, but this view is considered less forceful in jurisdictions today. Whether the two parties have reached agreement on the terms or whether a valid offer has been made is a legal question. In some jurisdictions, courts use criteria known as 'the objective test', which was explained in the leading English case of
Smith v. Hughes. In Smith v. Hughes, the court emphasised that the important thing in determining whether there has been a valid offer is not the party's own (subjective) intentions but how a reasonable person would view the situation. The objective test has largely been superseded in the UK by the introduction of the
Brussels Regime in combination with the
Rome I Regulation. An offer can be the basis of a binding contract only if it contains the key terms of the contract. For example, in some jurisdictions, a minimum requirement for sale of goods contracts is the following four terms: delivery date, price, terms of payment that includes the date of payment, and a detailed description of the item on offer including a fair description of the condition or type of service. Other jurisdictions vary or eliminate these requirements. Unless the minimum requirements are met, an offer of sale is not classified by the courts as a legal offer but is instead seen as an
advertisement. In line with the definition from
Treitel above, to invite acceptance an offer must be
serious. In this sense, an obvious joke cannot become the basis of an offer because the potential offeror lacks actual intent to enter into an exchange. For instance, in the famous case of
Leonard v. Pepsico, Inc., depiction of a military aircraft offered in exchange for "Pepsi Points" was interpreted by a court as a joke. Despite having clear terms (7,000,000 Pepsi Points in exchange for one aircraft), the humorous elements of the commercial rendered that portion of the advertisement a joke rather than a serious offer. Whether a potential offer is serious is evaluated under an objective standard, independent of the subjective intent of the one making or accepting the offer. In the case of
Lucy v. Zehmer, what one party believed were jests about selling a farm turned into a binding contract, based on the court's evaluation of the circumstance from the perspective of a reasonable observer. Similarly, in the case of
Berry v. Gulf Coast Wings Inc., one party's offer of a "Toyota" for the winner of a contest was interpreted as requiring the offeror to provide a vehicle to the winner rather than a "Toy Yoda" doll from
Star Wars, despite the assertion that the contest was based on a joke.
Counter-offers The "mirror image rule" states that if someone is to accept an offer, they must accept the offer
exactly, without modifications; if they change the offer in any way, this is a
counter-offer, which kills the original offer. Apparent but conditional acceptance of an offer constitutes a counter-offer: for example in
Morton v 4 Orchard Lane Trust, the words "After review of the Contract in this regard, I find same to be acceptable provided the following changes and/or modifications are made thereto ..." showed that there was no "meeting of minds" and that a counter-offer had been put forward. On submission of a counter-offer, the original offer cannot be accepted at a future time.
Unilateral contract A
unilateral contract is created when someone offers to do something "in return for" the performance of the
act stipulated in the offer. In a unilateral contract, acceptance may not have to be communicated and can be accepted through conduct by performing the act. Nonetheless, the person performing the act must do it in reliance on the offer. A unilateral contract differs from a
bilateral contract, where there is an exchange of
promises between two parties. For example, if one party promises to buy a car and the other party promises to sell a car, that is a bilateral contract. The formation of a unilateral contract can be demonstrated in the English case
Carlill v Carbolic Smoke Ball Co. an indication by the owner of property that he or she might be interested in selling at a certain price, for example, has been regarded as an invitation to treat. Similarly in the English case
Gibson v Manchester City Council the words "may be prepared to sell" were held to be a notification of price and therefore not a distinct offer, though in another case concerning the same change of policy (Manchester City Council underwent a change of political control and stopped the sale of council houses to their tenants)
Storer v. Manchester City Council, the court held that an agreement was completed by the tenant's signing and returning the agreement to purchase, as the language of the agreement had been sufficiently explicit and the signature on behalf of the council a mere formality to be completed. Statements of invitation are only intended to solicit offers from people and are not intended to result in any immediate binding obligation. The courts have tended to take a consistent approach to the identification of invitations to treat, as compared with offer and acceptance, in common transactions. The display of goods for sale, whether in a shop window or on the shelves of a self-service store, is ordinarily treated as an invitation to treat and not an offer. The holding of a public
auction will also usually be regarded as an invitation to treat. Auctions are, however, a special case generally. The rule is that the bidder is making an offer to buy and the auctioneer accepts this in whatever manner is customary, usually the fall of the hammer. A bidder may withdraw his or her bid at any time before the fall of the hammer, but any bid in any event lapses as an offer on the making of a higher bid, so that if a higher bid is made, then withdrawn before the fall of the hammer, the auctioneer cannot then purport to accept the previous highest bid. If an auction is without reserve then, whilst there is no contract of sale between the owner of the goods and the highest bidder (because the placing of goods in the auction is an invitation to treat), there is a collateral contract between the auctioneer and the highest bidder that the auction will be held without reserve (i.e., that the highest bid, however low, will be accepted). The U.S.
Uniform Commercial Code provides that in an auction without reserve the goods may not be withdrawn once they have been put up.
Revocation of offer An offeror may revoke an offer before it has been accepted, but the revocation must be communicated to the offeree (although not necessarily by the offeror). If the offer was made to the entire world, such as in Carlill's case, If the offer is one that leads to a unilateral contract, the offer generally cannot be revoked once the offeree has begun performance.
Offers as evidence of value Unaccepted offers to purchase are generally not recognised by courts for the purpose of proving the value of the proposed purchase. In the US case of Sharp v. United States (1903), a
New Jersey landowner, Sharp, argued that the value of his land which had been taken by the government for fortification and defence purposes had been underestimated, and he sought to put forward examples of "different offers he had received to purchase the property for hotel, residential, or amusement purposes, or for a ferry, or a railroad terminal, or to lease the property for hotel purposes". The trial court (the
District Court of New Jersey), the
Court of Appeals for the Third Circuit and the
Supreme Court all affirmed that such evidence was to be rejected, citing evidence from a number of previous cases which had established the same principle. Offers to purchase are considered to suffer "inherent unreliability for this purpose". ==Acceptance==