Search Results for author: Matteo Barigozzi

Found 10 papers, 0 papers with code

Dynamic Factor Models: a Genealogy

no code implementations26 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.

Time Series

Asymptotic equivalence of Principal Components and Quasi Maximum Likelihood estimators in Large Approximate Factor Models

no code implementations19 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.

regression Time Series +1

Hierarchical DCC-HEAVY Model for High-Dimensional Covariance Matrices

no code implementations15 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.

Vocal Bursts Intensity Prediction

Quasi Maximum Likelihood Estimation of High-Dimensional Factor Models: A Critical Review

no code implementations21 Mar 2023 Matteo Barigozzi

We review Quasi Maximum Likelihood estimation of factor models for high-dimensional panels of time series.

Vocal Bursts Intensity Prediction

Multidimensional dynamic factor models

no code implementations29 Jan 2023 Matteo Barigozzi, Filippo Pellegrino

This paper generalises dynamic factor models for multidimensional dependent data.

Time Series Time Series Analysis

On Estimation and Inference of Large Approximate Dynamic Factor Models via the Principal Component Analysis

no code implementations3 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.

regression Time Series +1

Modelling Large Dimensional Datasets with Markov Switching Factor Models

no code implementations18 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.

Factor Network Autoregressions

no code implementations4 Aug 2022 Matteo Barigozzi, Giuseppe Cavaliere, Graziano Moramarco

We propose a factor network autoregressive (FNAR) model for time series with complex network structures.

Dimensionality Reduction Time Series +1

Inference in heavy-tailed non-stationary multivariate time series

no code implementations29 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 $y_{t}$.

Time Series Time Series Analysis

Quasi Maximum Likelihood Estimation of Non-Stationary Large Approximate Dynamic Factor Models

no code implementations22 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.

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