<Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> Quantum meruit is a Latin phrase meaning "what one has earned". In the context of contract law, it means something along the lines of "reasonable value of services". </P> <P> In the United States, the elements of quantum meruit are determined by state common law . For example, to state a claim for unjust enrichment in New York, a plaintiff must allege that (1) defendant was enriched; (2) the enrichment was at plaintiff's expense; and (3) the circumstances were such that equity and good conscience require defendants to make restitution . </P> <P> Quantum meruit is the measure of damages where an express contract is mutually modified by the implied agreement of the parties, or not completed . While there is often confusion between the concept of quantum meruit and that of "unjust enrichment" of one party at the expense of another, the two concepts are distinct . </P>

When does a claim on quantum meruit arise