Andrew Bloomenthal has 20+ years of editorial experience as a financial journalist and as a financial services marketing writer. Erika Rasure is globally-recognized as a leading consumer economics ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Robert Kelly is managing director of XTS ...

UK retail sales volumes were weak in December. Consumer rebellion over profit-led inflation pushed consumers into buying earlier when discounts were on offer, and simply refusing to consume when ...

The law of diminishing marginal utility states that the marginal utility of a product or service declines as more of it is consumed by the individual. However, there are rare exceptions to this law.