2000
DOI: 10.1080/07474930008800475
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GMM Estimation with persistent panel data: an application to production functions

Abstract: This paper considers the estimation of Cobb-Douglas production functions using panel data covering a large sample of companies observed for a small number of time periods. GMM estimatorshave been found to produce large finite-sample biases when using the standard first-differenced estimator. These biases can be dramatically reduced by exploiting reasonable stationarity restrictions on the initial conditions process. Using data for a panel of R&Dperforming US manufacturing companies we find that the additional … Show more

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Cited by 1,471 publications
(969 citation statements)
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“…Their extended system GMM estimator not only improves the precision but also reduces the finite sample bias. These features of their procedure are confirmed by Blundell and Bond [25] and Blundell et al [26], who conclude that the system GMM estimator can overcome much of the failure to obtain consistent estimates in dynamic panel models.…”
Section: An Overview Of the Autoregressive Models And Dynamic Panel Datasupporting
confidence: 61%
“…Their extended system GMM estimator not only improves the precision but also reduces the finite sample bias. These features of their procedure are confirmed by Blundell and Bond [25] and Blundell et al [26], who conclude that the system GMM estimator can overcome much of the failure to obtain consistent estimates in dynamic panel models.…”
Section: An Overview Of the Autoregressive Models And Dynamic Panel Datasupporting
confidence: 61%
“…To avoid the problem of the correlation between y i,t-1 and v i in equation (3) instrumental variables 9 are introduced. This estimator showed better properties than the Arellano and Bond estimator and all other estimators in numerous researches (Blundell & Bond, 1998, 2000Bond, 2002;Bun & Windemeijer, 2007;Soto, 2009).…”
Section: Methodsmentioning
confidence: 99%
“…Lora and Olivera (2009) and Lora (2009) apply a first-difference GMM estimator to analyse the vulnerability of social expenditure to several fiscal variables, using as instruments the lagged levels of the explanatory variables. However, as Blundell and Bond (2000) point out, when the lagged values of the series used as instruments are weakly correlated with the first differences of the endogenous variables, then the first-differenced GMM estimator results are expected to be downward biased in the direction within the groups. This problem is even more severe when series are highly persistent and the time period is small (Yasar et al 2006).…”
Section: Methodsmentioning
confidence: 99%
“…This problem is even more severe when series are highly persistent and the time period is small (Yasar et al 2006). For this reason, Arellano and Bover (1995) and Blundell andBond (1998, 2000) recommend the use of the system GMM estimator, which combines the moment conditions defined for the first-differenced equation with the moment conditions defined for the level equation. It uses the lagged levels of the series as instruments for the first-difference equation and the lagged first-differences of the series as instruments for the level equation.…”
Section: Methodsmentioning
confidence: 99%