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 ...

A linear demand curve is a line representing the relationship between the demand for a product or service and its price. Everyone knows that sales are proportional to price: The more you charge for an ...

Learn how variations in price elasticity affect the supply and demand curves and what factors cause differences in elasticity ...

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 ...