Financial conditions indexes (FCIs) are constructed for five Asian economies, namely, Hong Kong, China; Japan; the Republic of Korea; Malaysia; and Singapore, using a principal component analysis (PCA) methodology from Hatzius et al. (2010) and quarterly data. Various financial stress indicators are...

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 paper reviews various treatments of non-metric variables in Partial Least Squares (PLS) and Principal Component Analysis (PCA) algorithms. The performance of different treatments is compared in the extensive simulation study under several typical data generating processes and...