Burrows 4Th Edn.Indb
Consideration and Promissory Estoppel The Formation of a Contract 3 Consideration and Promissory Estoppel 1. CONSIDERATION In general, agreements or promises are contractually binding in English law only if supported by consideration. The requirement of consideration means that each party must receive or be promised something in return for giving or promising something. Consideration is, therefore, the legal description of the element of exchange and its practical effect is to ensure that gratuitous promises are not binding whereas bargains are. So if A promises B £1000, B cannot enforce that promise because B has provided no consideration (nothing in exchange) for it. It is traditional to defi ne consideration as a benefi t to the promisor or a detriment to the promisee. So in Currie v Misa (1875) LR 10 Ex 153, 162 Lush J stated, ‘A valuable consideration, in the sense of the law, may consist either in some right, interest, profi t, or benefi t accruing to the one party, or some forbearance, detriment, loss, or respon- sibility, given, suffered, or undertaken by the other.’ This defi nition can be misleading unless one emphasises,http://www.pbookshop.com in line with the need for an exchange, that the detriment to the promisee must be requested by the promisor. So if A promises B £1000 and B, in reliance on receiving that money, buys a car, that may constitute detrimental reliance by B but B has not thereby provided any consideration for A’s promise. In contrast, if A promises B £1000 in return for B’s car (ie A requests the car), B’s transfer of the car, or promise to transfer it, is consideration for A’s promise.
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