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 ...

Pi Gamma Mu is the oldest and preeminent honor society in the social sciences. Our mission is to encourage and recognize superior scholarship in social-science disciplines and to foster cooperation ...

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 ...