We study variance estimation in a negative binomial regression model for analyzing time series of counts, where serial dependence among the observed counts is introduced by an autocorrelated latent process. The regression coefficient vector is estimated by maximizing the pseudo-likelihood with...

As a multi-dimensional indicator that captures the quality of life and wellbeing, the level of life satisfaction is very important for designing future policy The present analysis will focus on the study of life satisfaction based on the Romanian respondents’ opinions and feelings about family...

The global climate changes are determined by diverse causes and among these,greenhouse gases emissions from business activities and agriculture, are partly responsible. Theconsequences of global climate changes are dramatic not only for the environment, and implicitlyfor the quality of life, but...

The paper considers interactive influence of certain types of economic activity within the rural sector on the region's agricultural production. The major interdependence has been established, the correlation-regression analysis has been conducted. The dependence is represented by the linear...

This note corrects a mistake in the estimation algorithm of the time-varying structural vector autoregression model of Primiceri (2005) and proposes a new algorithm that correctly applies the procedure proposed by Kim, Shephard, and Chib (1998) to the estimation of VAR or DSGE models with...

The study of the life expectancy of a population is important for the evaluation of the degree of economic and social development of a region. The identification of the determinant factors of life expectancy and of the specificity of their actions by regions could offer useful information of...

In this paper, we estimate alpha for major hedge fund indexes. To set the stage, we examine several alternative methods for replicating Hedge Fund Research Inc. hedge fund indexes. The replication methods include stepwise regression, variations of the lasso shrinkage method, principal component...

The new EU Member States have made important efforts to achieve an economic growth based on accumulation of knowledge according with principles and realities of developed countries. After accession, Romania has initiated an extensive restructuring process in entire society. The main purpose of...

Gypsum is one of the most important mined mineral commodities of the world. As an industrial rock, it is primarily used by the construction industry. Therefore, the economics of the gypsum market can be correlated with parameters that have controlled the origin and development of the Spanish...

This paper describes the development of energy-demand models which are able to predict the future energy demand in the residential sector of the United States. One set of models use an artificial neural network (ANN) technique, and the other set of models use a multiple linear regression (MLR)...