Autoregressive

Definition of 'Autoregressive'


A stochastic process used in statistical calculations in which future values are estimated based on a weighted sum of past values. An autoregressive process operates under the premise that past values have an effect on current values. A process considered AR(1) is the first order process, meaning that the current value is based on the immediately preceding value. An AR(2) process has the current value based on the previous two values.

Investopedia explains 'Autoregressive'


Autoregressive processes are used by investors in technical analysis. Trends, moving averages and regressions take into account past prices in an effort to create forecasts of future price movement. One drawback to this type of analysis is that past prices won't always be the best predictor of future movements, especially if the underlying fundamentals of a company have changed.



comments powered by Disqus
Hot Definitions
  1. Harvest Strategy

    A strategy in which investment in a particular line of business is reduced or eliminated because the revenue brought in by additional investment would not warrant the expense. A harvest strategy is employed when a line of business is considered to be a cash cow, meaning that the brand is mature and is unlikely to grow if more investment is added.
  2. Stop-Limit Order

    An order placed with a broker that combines the features of stop order with those of a limit order. A stop-limit order will be executed at a specified price (or better) after a given stop price has been reached. Once the stop price is reached, the stop-limit order becomes a limit order to buy (or sell) at the limit price or better.
  3. Pareto Principle

    A principle, named after economist Vilfredo Pareto, that specifies an unequal relationship between inputs and outputs. The principle states that, for many phenomena, 20% of invested input is responsible for 80% of the results obtained. Put another way, 80% of consequences stem from 20% of the causes.
  4. Pareto Principle

    A principle, named after economist Vilfredo Pareto, that specifies an unequal relationship between inputs and outputs. The principle states that, for many phenomena, 20% of invested input is responsible for 80% of the results obtained. Put another way, 80% of consequences stem from 20% of the causes.
  5. Budget Deficit

    A status of financial health in which expenditures exceed revenue. The term "budget deficit" is most commonly used to refer to government spending rather than business or individual spending. When referring to accrued federal government deficits, the term "national debt” is used.
  6. Floating Exchange Rate

    A country's exchange rate regime where its currency is set by the foreign-exchange market through supply and demand for that particular currency relative to other currencies. Thus, floating exchange rates change freely and are determined by trading in the forex market.
Trading Center