Estimate demand function to understand initial product pricing vs. quantity. Use derivative for the revenue equation to find marginal revenue changes. Marginal revenue derivative is a tool to guide ...

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 ...

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 ...