Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Robert Kelly is managing director of XTS Energy LLC, and has more than three ...

Definition of 'Diminishing Marginal Rate of Substitution' Consumer tastes exhibit a Diminishing Marginal Rate of Substitution when, to hold utility constant, diminishing quantities of one good must be ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Thomas J. Brock is a CFA and CPA with more than 20 years of experience in various areas including investing, ...

The Marginal Utility of a good is the increase in total utility obtained by consuming one more unit of that good, for given consumption of other goods.

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 ...