System GMM (Arellano-Bover / Blundell-Bond)
System GMM ni mbinu ya jumla ya vipimo vya moments kwa ajili ya mifumo ya paneli yenye nguvu inayojumuisha tegemezi la kuchelewa. Imeanzishwa na Blundell na Bond (1998), ikijenga juu ya Arellano na Bover, inaongeza hesabu ya tofauti ya awali ya tofauti GMM (Arellano-Bond) na hesabu katika viwango ili kutoa makadirio thabiti wakati N ni kubwa na T ni ndogo.
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Vyanzo
- Arellano, M. & Bond, S. (1991). Some Tests of Specification for Panel Data: Monte Carlo Evidence and an Application to Employment Equations. Review of Economic Studies, 58(2), 277-297. DOI: 10.2307/2297968 ↗
- Blundell, R. & Bond, S. (1998). Initial Conditions and Moment Restrictions in Dynamic Panel Data Models. Journal of Econometrics, 87(1), 115-143. DOI: 10.1016/S0304-4076(98)00009-8 ↗
- Roodman, D. (2009). How to Do xtabond2: An Introduction to Difference and System GMM in Stata. Stata Journal, 9(1), 86-136. DOI: 10.1177/1536867X0900900106 ↗
Jinsi ya kunukuu ukurasa huu
ScholarGate. (2026, June 1). System Generalized Method of Moments Estimator (Arellano-Bover / Blundell-Bond). ScholarGate. https://scholargate.app/sw/econometrics/system-gmm
Which method?
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