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| Roodman, David. |
| The difference and system generalized method-of-moments estimators, developed by Holtz-Eakin, Newey, and Rosen (1988, Econometrica 56: 1371–1395); Arellano and Bond (1991, Review of Economic Studies 58: 277–297); Arellano and Bover (1995, Journal of Econometrics 68: 29–51); and Blundell and Bond (1998, Journal of Econometrics 87: 115–143), are increasingly popular. Both are general estimators designed for situations with “small T, large N” panels, meaning few time periods and many individuals; independent variables that are not strictly exogenous, meaning they are correlated with past and possibly current realizations of the error; fixed effects; and heteroskedasticity and autocorrelation within individuals. This pedagogic article first introduces linear... |
| Tipo: Article |
Palavras-chave: Xtabond2; Generalized method of moments; GMM; Arellano–Bond test; Abar; Research Methods/ Statistical Methods. |
| Ano: 2009 |
URL: http://purl.umn.edu/122704 |
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| Alarcón, Silverio. |
| Firm panel data sets over the period 1993 to 2002 are used to estimate translog production functions with labour, capital and material inputs for 9 Spanish food industries. To tackle the endogeneity of the regressors, the generalized method of moments estimations is employed. The specification tests reject the instrument variables only for 1 out of 9 estimates. The remaining 8 industries show evidence of homogeneity and constant returns to scale. Only one industry exhibits complete separability of all pairs of factors and thus translog is preferred to Cobb-Douglas specification for 7 industries. Substitutability and complementarity between production factors in response to price changes are studied through Morishima and Shadow elasticities.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Translog; Elasticity of substitution; Generalized method of moments; Returns to scale; Agribusiness; C23; D24; L66. |
| Ano: 2005 |
URL: http://purl.umn.edu/24487 |
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