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 ...

Utility functions measure consumer preferences and satisfaction with goods or services. They help analyze consumer decisions to maximize satisfaction in rational choice theory. Economists and ...

1. An indifference curve is defined as a set of bundles that a consumer with a given income can afford, and among which she or he is indifferent. 2. More is preferred to less means that if the total ...