Σύγκριση μεθόδων

	Μοντέλο Panel SARIMA	Μοντέλο Panel ARIMA
Πεδίο	Οικονομετρία	Οικονομετρία
Οικογένεια	Regression model	Regression model
Έτος προέλευσης	1976 (SARIMA); 1990s (panel extensions)	1970s–2000s
Δημιουργός	Box & Jenkins (SARIMA foundation); panel extension via mean-group and pooled estimators	Extension of Box-Jenkins ARIMA (Box & Jenkins, 1970) to panel settings; formalised in panel econometrics literature (Hsiao, 2003)
Τύπος	Seasonal time series panel model	Time-series model applied to panel data
Θεμελιώδης πηγή	Box, G. E. P., Jenkins, G. M., & Reinsel, G. C. (1976). Time Series Analysis: Forecasting and Control. Holden-Day. ISBN: 978-0470272848	Hsiao, C. (2003). Analysis of Panel Data (2nd ed.). Cambridge University Press. ISBN: 978-0521522717
Εναλλακτικές ονομασίες	Panel SARIMA, Seasonal ARIMA panel model, SARIMA panel estimation, grouped seasonal time series model	Panel ARIMA, ARIMA for panel data, cross-sectional ARIMA, multi-unit ARIMA
Συναφείς	5	5
Σύνοψη	The Panel SARIMA model applies the Seasonal Autoregressive Integrated Moving Average (SARIMA) framework to panel data, fitting individual or pooled seasonal time series models across multiple cross-sectional units. It captures both non-seasonal and seasonal autocorrelation, trends, and periodicity, making it suitable for datasets where multiple entities share a common seasonal structure over time.	The Panel ARIMA model extends the classical Box-Jenkins ARIMA framework to panel data, fitting autoregressive integrated moving-average dynamics to multiple cross-sectional units observed over time. It accommodates unit-specific short-run dynamics and non-stationarity, making it suitable for forecasting and dynamic analysis when both cross-sectional and temporal dimensions are present.