Showing 1 - 10 of 10,950
This paper develops parameter instability and structural change tests within predictive regressions for economic systems governed by persistent vector autoregressive dynamics. Specifically, in a setting where all – or a subset – of the variables may be fractionally integrated and the...
Persistent link: https://www.econbiz.de/10012831312
We develop a penalized two-pass regression with time-varying factor loadings. The penalization in the first pass enforces sparsity for the time-variation drivers while also maintaining compatibility with the no arbitrage restrictions by regularizing appropriate groups of coefficients. The second...
Persistent link: https://www.econbiz.de/10012487589
We represent the dynamic relation among variables in vector autoregressive (VAR) models as directed graphs. Based on … need to be included in a VAR if interest is in forecasting or impulse response analysis of a given set of variables. We …-step causal for the variables of interest by relating the paths in the graph to the coefficients of the "direct" VAR …
Persistent link: https://www.econbiz.de/10012317407
-Augmented VAR Models by Chao and Swanson (2022) are gathered in this paper …
Persistent link: https://www.econbiz.de/10013306503
. We study this problem within a factor-augmented VAR (FAVAR) framework, and show that by using variables selected via our …
Persistent link: https://www.econbiz.de/10013306504
variables, a Hierarchical Vector Auto-Regression model estimated with the LASSO, and a set of forecasting models using a …
Persistent link: https://www.econbiz.de/10014349277
Several novel large volatility matrix estimation methods have been developed based on the high-frequency financial data. They often employ the approximate factor model that leads to a low-rank plus sparse structure for the integrated volatility matrix and facilitates estimation of large...
Persistent link: https://www.econbiz.de/10012941598
This paper investigates the effect of characteristic-based time-varying factor beta on the diffusion-index type forecast. Specifically, the factor beta includes two distinct components: the "instrumental beta'' is a function of some observed stable variables, while the "idiosyncratic beta''...
Persistent link: https://www.econbiz.de/10013240929
This paper introduces a unified multivariate overnight GARCH-Ito model for volatility matrix estimation and prediction both in the low- and high-dimensional set-up. To account for whole-day market dynamics in the financial market, the proposed model has two different instantaneous volatility...
Persistent link: https://www.econbiz.de/10013290653
impact on electricity price and volatility. In this paper, we employ a mixed-frequency vector autoregression (MF-VAR …) framework where we propose a VAR specification to the reverse unrestricted mixed-data sampling (RU-MIDAS) model, called RU-MIDAS-VAR … regressors can replicate some key characteristics of electricity prices. We also find the MF-VAR and RU-MIDAS-VAR models achieve …
Persistent link: https://www.econbiz.de/10015408219