In this work, we discuss the concept of brand and, after a brief presentation of the origins of it and its relationship with trademarks and quality marks, we propose a new perceptual map to compare two similar brands. This perceptual map is inspired by a scheme used in quality control,...

In the last few years, multivariate quality control has been thoroughly studied. The control of the population means vector is usually obtained by using multivariate control charts developed for this purpose. Nevertheless, when the goal is the efficient control of the covariance matrix, few...

In the last few years, multivariate quality control has been thoroughly studied. The control of the population means vector is usually obtained by using multivariate control charts developed for this purpose. Nevertheless, when the goal is the efficient control of the covariance matrix, few...