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experiments considered in this paper. Despite its simplicity, the theory behind the proposed approach is quite complicated. We …
Persistent link: https://www.econbiz.de/10011444508
randomly weighting the original predictors. Using recent results from random matrix theory, we obtain a tight bound on the mean …
Persistent link: https://www.econbiz.de/10011531132
In this paper, we propose a multivariate quantile regression method which enables localized analysis on conditional quantiles and global comovement analysis on conditional ranges for high-dimensional data. The proposed method, hereafter referred to as FActorisable Sparse Tail Event Curves, or...
Persistent link: https://www.econbiz.de/10011296776
This article applies the quantile regression forest (QRF), which is an improved method for predicting future monetary policy and macroeconomic downside risks in China. The information used to forecast is derived from Chinese systemic risk. We construct two Chinese systemic risk information sets,...
Persistent link: https://www.econbiz.de/10012839253
This paper studies macroeconomic forecasting and variable selection using a folded-concave penalized regression with a very large number of predictors. The penalized regression approach leads to sparse estimates of the regression coefficients, and is applicable even if the dimensionality of the...
Persistent link: https://www.econbiz.de/10012961663
This paper introduces structured machine learning regressions for prediction and nowcasting with panel data consisting of series sampled at different frequencies. Motivated by the empirical problem of predicting corporate earnings for a large cross-section of firms with macroeconomic, financial,...
Persistent link: https://www.econbiz.de/10012826088
Regularizing Bayesian predictive regressions provides a framework for prior sensitivity analysis via the regularization path. We jointly regularize both expectations and variance-covariance matrices using a pair of shrinkage priors. Our methodology applies directly to vector autoregressions...
Persistent link: https://www.econbiz.de/10012968480
Structured additive regression (STAR) models are a rich class of regression models that include the generalized linear model (GLM) and the generalized additive model (GAM). STAR models can be fitted by Bayesian approaches, component-wise gradient boosting, penalized least-squares, and deep...
Persistent link: https://www.econbiz.de/10012800192
The paper discusses the specifics of forecasting with factor-augmented predictive regressions under general loss functions. In line with the literature, we employ principal component analysis to extract factors from the set of predictors. We additionally extract information on the volatility of...
Persistent link: https://www.econbiz.de/10012918972
We investigate whether machine learning techniques and a large set of financial and macroeconomic variables can be used to predict future S&P realized volatility. We evaluate the aggregate volatility predictions of regularization methods (Ridge, Lasso, and Elastic Net), tree-based methods...
Persistent link: https://www.econbiz.de/10013232613