The demand curve explains the relationship between price and number of sales (also called product demand). Companies can leverage some control over their sales by manipulating the price, but there are ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Firms usually decide how many workers to employ based on how much income each worker generates for the company after deducting employment expenses. Managers estimate how much income workers generate ...

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 ...

Uber has created more than a booming ride-sharing market. It’s given economists a treasure trove of data to understand one of the fundamental concepts of economics: the demand curve. Steven Levitt, ...