Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. MPS and MPC measure the portion of extra ...

Marginal cost refers to the change in total cost arising from the production of one additional unit. For example, in a manufacturing firm, the marginal cost will give a measure of the change in total ...

The world of microeconomics and business decision-making hinges upon a key concept: marginal cost. In the simplest terms, marginal cost represents the expense incurred to produce an additional unit of ...

Like the stock market, margin debt has risen sharply in recent months. According to FINRA's latest margin statistics, borrowing by investors in November 2017 stood at an all-time high of $627.4 ...

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 ...