%0 Journal Article %T State-Space Models on the Stiefel Manifold with a New Approach to Nonlinear Filtering %A Luc Bauwens %A Yukai Yang %J - %D 2018 %R https://doi.org/10.3390/econometrics6040048 %X Abstract We develop novel multivariate state-space models wherein the latent states evolve on the Stiefel manifold and follow a conditional matrix Langevin distribution. The latent states correspond to time-varying reduced rank parameter matrices, like the loadings in dynamic factor models and the parameters of cointegrating relations in vector error-correction models. The corresponding nonlinear filtering algorithms are developed and evaluated by means of simulation experiments. View Full-Tex %K state-space models %K Stiefel manifold %K matrix Langevin distribution %K filtering %K smoothing %K Laplace method %K dynamic factor model %K cointegration %U https://www.mdpi.com/2225-1146/6/4/48