We derive asymptotic properties of estimators and test statistics to determine - in a grouped data setting - common versus group-specific factors. Despite the fact that our test statistic for the number of common factors, under the null, involves a parameter at the boundary (related to unit...

The aim of this research consists on determine the factors that explain costumer satisfaction in the Mexican household fixed Internet service industry. The impossibility to measure directly our variable of interest entails the use of a factor analysis methodology which examines latent variables...