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Testing for heteroskedasticity in fixed effects models
(Elsevier, 2014-01)
We derive tests for heteroskedasticity after fixed effects estimation of linear panel models. The asymptotic results are based on a ‘large N–fixed T’ framework, where the incidental parameters problem is bypassed by utilizing ...
Non-perturbative fixed points and renormalization group improved effective potential
(Elsevier B.V., 2014-12-12)
The stability conditions of a renormalization group improved effective potential have been discussed in the case of scalar QED and QCD with a colorless scalar. We calculate the same potential in these models assuming the ...
Correcting the fixed-effect estimator for endogenous switching
(2007-07-20)
In this paper, we propose a two-step estimator for panel data models in which a binary covariate is endogenous. In the first stage, a random-effects probit model is estimated, having the endogenous variable as the left-hand ...
Technical efficiency measures for dairy farms using panel data: A comparison of alternative model specifications
(Springer Netherlands, 2008)
Modeling of syngas composition obtained from fixed bed gasifiers using Kuhn–Tucker multipliers
(2021-03-01)
This work consists of developing a predictive model (PM) for syngas composition obtained from biomass gasification in fixed bed gasifiers. The PM is composed of three correlations which are made for carbon conversion ...
Modelos lineares generalizados multinomiais univariado e bivariado
(Universidade Federal de São CarlosUFSCarCâmpus São CarlosEstatística - Es, 2021-06-10)
This work presents the basical theorics fundaments of the generalized linear models e the caracteristiscs of the univariate multinomial and binomial logistic regression analysis. Practical aplications of binomial regression ...
Local attractors, degeneracy and analyticity: Symmetry effects on the locally coupled Kuramoto model
(2013-04-02)
In this work we study the local coupled Kuramoto model with periodic boundary conditions. Our main objective is to show how analytical solutions may be obtained from symmetry assumptions, and while we proceed on our endeavor ...