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 ...

A demand curve displays how the number of units demanded changes as the price point of the item increases. The quantity is measured on the X-axis and the price is shown on the Y-axis. The X-axis is ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Timothy Li is a consultant, accountant, and finance manager with an MBA from ...