This study examines determinant factors for the expansion of informal settlements in Gondar, a historical city in Ethiopia. In order to address this study objective, quantitative data were employed from 196 randomly selected households in four sites. The study indicated that a single factor is...

Is aggregate income enough to summarize the well-being of a society? We address this longstanding question by exploiting a novel approach to study the relationship between gross domestic product (GDP) and a set of economic, social and environmental indicators for nine developed economies. By...

Principal components analysis (PCA) is often used as a dimensionality reduction technique. A small number of principal components is selected to be used in a classification or a regression model to boost accuracy. A central issue in the PCA is how to select the number of principal components....