Abstract The Birnbaum‐Saunders (BS) distribution is a model that frequently appears in the
statistical literature and has proved to be very versatile and efficient across a wide range of …

This research presents models for assessing productivity and technical efficiency of the
Chilean manufacturing sector by using a factor analysis as a methodological alternative to …

In chemometrical applications, covariates in regression models are often correlated, causing
a collinearity problem that can be solved by partial least squares (PLS) regression. In …

Matrix differential calculus is a powerful mathematical tool in multivariate analysis and
related areas such as econometrics, environmetrics, geostatistics, predictive modeling …

This work deals with log‐symmetric regression models, which are particularly useful when
the response variable is continuous, strictly positive, and following an asymmetric …

Autoregressive models have played an important role in time series. In this paper, an
autoregressive model based on the skew-normal distribution is considered. The estimation …

Income modeling is crucial in determining workers' earnings and is an important research
topic in labor economics. Traditional regressions based on normal distributions are …

At first glance, it might seem that the economic aspects of sustainability in terms of waste
management have resolved themselves already in areas of activity. In reality, however …

The purpose of this paper is to establish a generalized dynamical framework for small and
micro‐enterprise (SME) growth in the tech‐economic paradigm, and develop a novel …

Improving air quality is an important environmental challenge of our time. Chile currently has
one of the most stable and emerging economies in Latin America, where human impact on …