no code implementations • 26 Oct 2023 • Matteo Barigozzi, Marc Hallin
Dynamic factor models have been developed out of the need of analyzing and forecasting time series in increasingly high dimensions.
no code implementations • 19 Jul 2023 • Matteo Barigozzi
Finally, we give some alternative sets of primitive sufficient conditions for mean-squared consistency of the sample covariance matrix of the factors, of the idiosyncratic components, and of the observed time series, which is the starting point for Principal Component Analysis.
no code implementations • 15 May 2023 • Emilija Dzuverovic, Matteo Barigozzi
We introduce a new HD DCC-HEAVY class of hierarchical-type factor models for conditional covariance matrices of high-dimensional returns, employing the corresponding realized measures built from higher-frequency data.
no code implementations • 21 Mar 2023 • Matteo Barigozzi
We review Quasi Maximum Likelihood estimation of factor models for high-dimensional panels of time series.
no code implementations • 29 Jan 2023 • Matteo Barigozzi, Filippo Pellegrino
This paper generalises dynamic factor models for multidimensional dependent data.
no code implementations • 3 Nov 2022 • Matteo Barigozzi
Finally, we give some alternative sets of primitive sufficient conditions for mean-squared consistency of the sample covariance matrix of the factors, of the idiosyncratic components, and of the observed time series, which is the starting point for Principal Component Analysis.
no code implementations • 18 Oct 2022 • Matteo Barigozzi, Daniele Massacci
We study a novel large dimensional approximate factor model with regime changes in the loadings driven by a latent first order Markov process.
no code implementations • 4 Aug 2022 • Matteo Barigozzi, Giuseppe Cavaliere, Graziano Moramarco
We propose a factor network autoregressive (FNAR) model for time series with complex network structures.
no code implementations • 29 Jul 2021 • Matteo Barigozzi, Giuseppe Cavaliere, Lorenzo Trapani
We propose a novel methodology which does not require any knowledge or estimation of the tail index, or even knowledge as to whether certain moments (such as the variance) exist or not, and develop an estimator of the number of stochastic trends $m$ based on the eigenvalues of the sample second moment matrix of $y_{t}$.
no code implementations • 22 Oct 2019 • Matteo Barigozzi, Matteo Luciani
This paper considers estimation of large dynamic factor models with common and idiosyncratic trends by means of the Expectation Maximization algorithm, implemented jointly with the Kalman smoother.