or a legal benefit to the promisor. In other words, the promisor must receive
something of legal value or the promisee must give up something of legal value
in return for the promise.
Legal detriment does not mean harm, but rather something which the promisee
was previously under no legal obligation to do or refrain from doing. Legal
benefit means the obtaining by the promisor of that which he had no prior legal
right to obtain.
Adequacy
Legal suffciency has nothing to do with adequacy of consideration. The
requirement of legally suffcient consideration is not at all concerned with
whether the bargain was “fair” or either good or bad for either party. The
requirement is simply: (1) that the parties have freely agreed to an exchange
and (2) that the subject matter exchanged, or promised in exchange, either
imposed a legal detriment on the promisee or conferred a legal benefit on the
promisor.
Unilateral Contracts
In a unilateral contract, one party (the promisor) exchanges a promise for an
action (or restraint from acting) from another party (the promisee). The
promisee does not make a promise in return, but simply fulfills the action or the
restraint to complete the contract.
Bilateral Contracts
In a bilateral contract there is an exchange of promises, so each party is both a
promisor and a promisee.
NOTE: See Case 12-1.
*** Chapter Outcome ***
Describe illusory promises, output contracts, requirements contracts,
exclusive dealing contracts, and conditional contracts.
Illusory Promises
A statement that appears to be a promise but that, upon close examination of
the words, promises nothing real or legally binding; it may contain words such as
“desire” or “want” or “wish to buy,” making performance entirely optional.
The following types of contracts are NOT illusory because the promisor has
actually become obligated to do something.
Output and Requirements Contracts — The agreement of a seller to sell her
entire production to a particular purchaser is called an output contract. An
agreement to purchase all the materials of a particular kind that the purchaser
needs from a seller is called a requirements contract. These are not illusory
contracts because they are for a provable quantity, not for a desired amount.