Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Charlene Rhinehart is a CPA , CFE, chair of ...

Marginal costs are defined as the actual cost of increasing production by one unit, or money saved by decreasing production by one unit. Marginal costs include all fixed costs, such as materials ...

Understand the link between total and marginal revenue, their differences, and how to calculate marginal revenue effectively. Learn when a company should adjust production.

Marginal efficiency of capital (MEC) is the discount rate at which the present value of the future yields from a capital asset are equal to its cost of acquisition. The idea behind computing the MEC ...

Effective and marginal tax rates might not be familiar terms. However, they’re essential concepts to understand because they determine how much income you’ll have to fork over to the government every ...