This note discusses some aspects of the paper by Hu and Tsay (2014), "Principal Volatility Component Analysis". The key issues are considered, and are also related to existing conditional covariance and correlation models. Some caveats are given about multivariate models of time-varying...

This article empirically estimates a micro-founded model with the aim to investigate the leading macroeconomic determinants and dynamics of financial deepening in the CEMAC sub-region. For this purpose, we adopted an empirical investigation in both static and dynamic panel data econometrics...