Clay Halton was a Business Editor at Investopedia and has been working in the finance publishing field for more than five years. He also writes and edits personal finance content, with a focus on ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Erika Rasure is globally-recognized as a leading consumer economics subject ...

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 ...