Compara mètodes

	Model de Mitjana Mòbil (MA)	Model Autoregressiu (AR)
Camp	Econometria	Econometria
Família	Regression model	Regression model
Any d'origen	1970	1970s (popularised 1976)
Autor original	Box and Jenkins	George E. P. Box and Gwilym M. Jenkins
Tipus	Linear time series model	Time series model
Font seminal	Box, G. E. P., Jenkins, G. M., & Reinsel, G. C. (1976). Time Series Analysis: Forecasting and Control (revised ed.). Holden-Day. ISBN: 978-0130607744	Box, G. E. P., & Jenkins, G. M. (1976). Time Series Analysis: Forecasting and Control (revised ed.). Holden-Day. ISBN: 978-0816211043
Àlies	MA model, MA(q) process, moving-average process, Box-Jenkins MA	AR model, AR(p) model, autoregression, AR process
Relacionats	5	6
Resum	The Moving Average model of order q — written MA(q) — expresses the current value of a time series as a linear combination of the current and past random shocks (innovations). Unlike the AR model which uses lagged values of the series itself, the MA model uses lagged error terms, making it well-suited for capturing short-lived disturbances that dissipate over q periods.	An autoregressive model of order p — AR(p) — expresses the current value of a time series as a linear function of its own p most recent past values plus a white-noise error. It is the building block of the Box-Jenkins family of time-series models and is widely used for forecasting stationary economic and financial series.