It is one of the basic principles taught to students studying economics. Introduced by Lord Alfred Marshall, it forms a crux in the micro-economic level often reflected in routine, day-to-day life.

William Baumol writes in "Economics: Principles and Policy" that the total monetary utility of a collection of goods to a consumer is equal to the largest amount of money the consumer will pay in ...

Marginal utility helps set product pricing; high initial satisfaction decreases with more units. Some stores use bulk pricing when consumers value additional items less. Progressive taxes assume each ...