Error Term

Definition of 'Error Term'


A variable in a statistical and/or mathematical model, which is created when the model does not fully represent the actual relationship between the independent variable(s) and the dependent variable. As a result of this incomplete relationship, the error term is the amount at which the equation may differ during empirical analysis.

The error term is also known as the "residual", or the "remainder" term.

Investopedia explains 'Error Term'


An error term essentially means that the model will not be completely accurate, and will result in differing results during real world applications. For example, assume there is a multiple linear regression function that takes the form:

Error Term


When the actual Y differs from the Y in the model during an empirical test, then the error term will not be equal to 0, which means there are other factors that influence Y.



comments powered by Disqus
Hot Definitions
  1. Marginal Analysis

    An examination of the additional benefits of an activity compared to the additional costs of that activity. Companies use marginal analysis as a decision-making tool to help them maximize their profits. Individuals unconsciously use marginal analysis to make a host of everyday decisions. Marginal analysis is also widely used in microeconomics when analyzing how a complex system is affected by marginal manipulation of its comprising variables.
  2. Treasury Inflation Protected Securities - TIPS

    A treasury security that is indexed to inflation in order to protect investors from the negative effects of inflation. TIPS are considered an extremely low-risk investment since they are backed by the U.S. government and since their par value rises with inflation, as measured by the Consumer Price Index, while their interest rate remains fixed.
  3. Gilt-Edged Switching

    The selling and repurchasing of certain high-grade stocks or bonds to capture profits. Gilt-edged switching involves gilt-edged security, which can be high-grade stock or bond issued by a financially stable company such as the Blue Chip companies or by certain governments.
  4. Master Limited Partnership - MLP

    A type of limited partnership that is publicly traded. There are two types of partners in this type of partnership: The limited partner is the person or group that provides the capital to the MLP and receives periodic income distributions from the MLP's cash flow, whereas the general partner is the party responsible for managing the MLP's affairs and receives compensation that is linked to the performance of the venture.
  5. Class Action

    An action where an individual represents a group in a court claim. The judgment from the suit is for all the members of the group (class).
  6. Retail Sales

    An aggregated measure of the sales of retail goods over a stated time period, typically based on a data sampling that is extrapolated to model an entire country. In the U.S., the retail sales report is a monthly economic indicator compiled and released by the Census Bureau and the Department of Commerce.
Trading Center