Environmental sustainability is a burning fact worldwide, especially in developing nations. Equitable economic development, environmental protection, energy efficiency and security have been placed at the apex of discussant policy formulation. This paper establishes relationship between trade quality Sub-Saharan Africa (SSA). Following Kuznets Curve (EKC) theory, we investigate existence an inv...

Panel data allow correction for measurement error without assuming a known measurement error covariance matrix or using additional validation/replication data to estimate the measurement error covariance matrix. Griliches and Hausman (1986) proposed using the generalized method of moments (GMM) or optimal weighting to efficiently combine instrumental variable (IV) estimators. Wansbeek (2001) ap...

The paper considers text independent speaker identification over the telephone using short training and testing data. Gaussian Mixture Modeling (GMM) is used in the testing phase, but the parameters of the model are taken from clusters obtained for the training data by an adequate choice of feature vectors and a distance measure without optimization in the maximum likelihood (ML) sense. This di...

One of the well known model is the ‘dynamic fixed effects panel model by Blundell, Grifffiths, and windmeijer (1995, 2002)’, which is called linear feedback model. This model uses first difference transformations and GMM for estimations. It assumes that the lagged dependent variable has liner relationship with current dependent variables, and the other covariates are related by nonlinear ways, ...

Recognition of economic growth determinants is one of the most important concerns for economists. In the oil exporting countries oil revenues play a significant role for the economy alongside with other economic growth determinants. This paper attempts to investigate the role of oil in selected oil-revenue dependent economies. Since oil revenue goes directly to public treasury and is expended b...

This study is to investigate the short- and long-run causal relationship between agglomeration (localization and urbanization) economies and labor productivity in the manufacturing sector of 28 Iranian provinces over an 11-year period, 2001–2011. Fully Modified Ordinary Least Squares (FMOLS) method was used to estimate our long-run panel data model. The empirical findings suggested that localiz...

Industrial structure plays a vital role in social and economic progress, as well the core domain of industrial economics. This paper reviewed coordination employment rate primary, secondary, tertiary industry, respectively by looking at its coefficient. More importantly, this examined relationship between growth using panel data from 2011 to 2019 constructing GMM model measure effects. Our find...