Much economic theory is based not on marginal analysis of totals but on analyzing the changes caused by increasing or decreasing those totals. Marginal cost is the increase in total costs resulting ...

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 ...

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 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 ...

What Is Marginal Propensity to Save? Marginal propensity to save (MPS) is used by economists to quantify the relationship between changes in income and changes in savings. It refers to the proportion ...