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In economics, factors of production, resources, or inputs are what is used in the production process to produce output—that is, goods and services. The utilized amounts of the various inputs determine the quantity of output according to the relationship called the production function .
The production functions listed below, and their properties are shown for the case of two factors of production, capital (K), and labor (L), mostly for heuristic purposes. These functions and their properties are easily generalizable to include additional factors of production (like land, natural resources, entrepreneurship, etc.)
Factor income (also called Primary income or Earned Income) is the flow of income that is derived from the factors of production, i.e., the general inputs required to produce goods and services. Factor income on the use of land is called rent , income generated from labor is called wages , and income generated from capital is divided between ...
These five income components sum to net domestic income at factor cost. Two adjustments must be made to get GDP: Taxes on production and imports minus subsidies are added to get from factor cost to market prices. Depreciation (or capital consumption allowance) is added to get from net domestic product to gross domestic product.
The inputs to the production function are commonly termed factors of production and may represent primary factors, which are stocks. Classically, the primary factors of production were land, labour and capital. Primary factors do not become part of the output product, nor are the primary factors, themselves, transformed in the production process.
Production can be either increased, decreased or remain constant as a result of consumption, amongst various other factors. The relationship between production and consumption is mirror against the economic theory of supply and demand. Accordingly, when production decreases more than factor consumption, this results in reduced productivity.
Wire-grid Cobb–Douglas production surface with isoquants A two-input Cobb–Douglas production function with isoquants. In economics and econometrics, the Cobb–Douglas production function is a particular functional form of the production function, widely used to represent the technological relationship between the amounts of two or more inputs (particularly physical capital and labor) and ...
If the production set Y can be represented by a production function F whose argument is the input subvector of a production vector, then increasing returns to scale are available if F(λy) > λF(y) for all λ > 1 and F(λy) < λF(y) for all λ<1. A converse condition can be stated for decreasing returns to scale.