Production is the process of creating, growing, manufacturing, or improving
goods and services. It also refers to the quantity produced.
In economics, productivity is used to measure the efficiency
or rate of production. It is the amount of output (e.g. number of goods
produced) per unit of input (e.g. labor, equipment, and capital).
In biology, productivity is a measure of the efficiency with
which a biological system converts energy into growth.
