The law of supply and demand is a fundamental principle of economics theory that describes the relationship between supplier output, consumer demand and price. The demand curve is represented by a ...

A demand curve is a graph used to demonstrate the relationship between the demand for a product and the price consumers are willing to pay. To understand what changes a demand curve, you need to ...

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 ...

Learn about choke price, the point where demand for a product hits zero. Explore how it influences consumer behavior, pricing ...