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	एआरएफआईएमए: भिन्नात्मक समाकलित एआरएमए मॉडल	पैनल डेटा फिक्स्ड इफेक्ट्स मॉडल
क्षेत्र	अर्थमिति	अर्थमिति
परिवार	Regression model	Regression model
उद्भव वर्ष	1980	2014
प्रवर्तक	Granger & Joyeux (1980); Hosking (1981)	Hsiao (textbook treatment); within transformation of panel data
प्रकार	Long-memory time series model	Panel data regression
मौलिक स्रोत	Granger, C. W. J. & Joyeux, R. (1980). An Introduction to Long-Memory Time Series Models and Fractional Differencing. Journal of Time Series Analysis, 1(1), 15–29.	Hsiao, C. (2014). Analysis of Panel Data (3rd ed.). Cambridge University Press.
उपनाम	fractionally integrated ARMA, long-memory time series model, ARFIMA / FIGARCH, fractional differencing model	fixed effects model, within estimator, panel fixed-effects regression, Panel Veri — Sabit Etkiler Modeli
संबंधित	5	5
सारांश	ARFIMA is a time series model that captures long-memory behaviour using a fractional differencing parameter d, generalising the integer differencing of ARIMA. It was introduced by Granger and Joyeux (1980) and formalised by Hosking (1981) to describe series whose autocorrelations decay slowly rather than abruptly.	The Panel Data Fixed Effects model estimates relationships from panel data (the same units observed over several time periods) while controlling for unit- and/or time-specific effects, supporting causal inference. It is developed as the within estimator in standard treatments such as Hsiao's Analysis of Panel Data (2014).