President Trump has declared multiple national emergencies since taking office. That's helping him act quickly. There are few ...

Definition: True cost economics is an economic model that includes the cost of negative externalities associated with goods and services. Description: If the prices of goods and services do not ...

Definition: Standard deviation is the measure of dispersion of a set of data from its mean. It measures the absolute variability of a distribution; the higher the dispersion or variability, the ...