# Exogenous

#### Full Definition of Exogenous

Exogenous is a change produced or caused by factors external to the economic model and come from outside the model. Exogenous change is unexplained by the model. Examples of exogenous may be cited in the demand and supply model where variations in consumer preferences and tastes cannot be explained by the economic model. Alternatively, exogenous changes are those that involve a change in an independent variable. This variable is completely unaffected by an economic model.

### Exogenous Variable

It is an independent variable that can affect a model but is not affected by it. Exogenous variable’s generation method and qualitative characteristics cannot be specified by builder of economic model. Usage includes setting up of arbitrary external conditions. Examples of exogenous variable include the expenditure of governments relating to income theory determination.

### Endogenous Variable

It is a dependent variable formed inside a model. An endogenous variable is one whose value is determined by one of the functional relationships found in that specific model. Examples include income and consumption expenditure that are regarded as endogenous to the determination of income economic models.

### Economic Model

It is a theoretical construct that represents different processes in economics by a variables set and quantitative and/or logical relationships between members of the set. This model is made to explain complex economic processes-without compulsory usage of mathematics. Most economic models employ structural parameters. A single economic model may comprise several parameters. These parameters may vary to create a number of properties.

### Gordon Growth Model

It is a model to ascertain a stock’s intrinsic value. Calculation of value according to the Gordon growth model is dependent on a future series of dividends that mature at a constant rate. If a dividend per share is payable in a year, and the premise that dividend increases at a constant rate in eternity, Gordon growth model figures out the present value of an infinite series of dividends in future. Gordon growth model is expressed mathematically as Stock value (P)= D / (k – G)

where D= anticipated dividend per share one year in future k= Equity investor’s required rate of return G= Dividends growth rate in perpetuity

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#### Definition Sources

Definitions for Exogenous are sourced/syndicated and enhanced from:

• A Dictionary of Economics (Oxford Quick Reference)
• Oxford Dictionary Of Accounting
• Oxford Dictionary Of Business & Management

This glossary post was last updated: 29th March, 2020 | 10 Views.