Showing 30,701 - 30,710 of 32,913
We propose a state space modeling framework to evaluate a set of forecasts that target the same variable but are updated along the forecast horizon. The approach decomposes forecast errors into three distinct horizon-specific processes, namely, bias, rational error and implicit error, and...
Persistent link: https://www.econbiz.de/10012944406
I combine the discrete wavelet transform with support vector regression to forecast gold-pricedynamics. I investigate the advantages of this approach using a relatively small set of economic and financial predictors. In order to measure model performance, I differentiate between statistical and...
Persistent link: https://www.econbiz.de/10012944906
We propose a flexible and robust non-parametric local logit regression for modelling and predicting defaulted loans' recovery rates that lie in [0,1]. Applying the model to the widely studied Moody's recovery dataset and estimating it by a data-driven method, the local logit regression uncovers...
Persistent link: https://www.econbiz.de/10012945593
Model selection and forecasting in stress tests can be facilitated using machine learning techniques. These techniques have proved robust in other fields for dealing with the curse of dimensionality, a situation often encountered in applied stress testing. Lasso regressions, in particular, are...
Persistent link: https://www.econbiz.de/10012945686
We conduct an innovative analysis of sporting world records by:a) using economic instead of sporting determinants and,b) by using multivariate stochastic frontier functions. Using data from 48 different disciplines between 1970 and 2014, we show that world records are close to full efficiency...
Persistent link: https://www.econbiz.de/10012946147
In this paper we extract latent factors from a large cross-section of commodity prices, including fuel and non-fuel commodities. We decompose each commodity price series into a global (or common) component, block-specific components and a purely idiosyncratic shock. We find that the bulk of the...
Persistent link: https://www.econbiz.de/10012946484
We evaluate the role of financial conditions as predictors of macroeconomic risk first in the quantile regression framework of Adrian et al. (2019b), which allows for non-linearities, and then in a novel linear semi-structural model as proposed by Hasenzagl et al. (2018). We distinguish between...
Persistent link: https://www.econbiz.de/10012839175
Tax authorities around the world are increasingly employing data mining and machine learning algorithms to predict individual behaviour. Although the traditional literature on optimal tax adminis- tration provides useful tools for ex-post evaluation of policies, it dis- regards the problem of...
Persistent link: https://www.econbiz.de/10012839756
Using a novel dataset that contains qualitative firm survey data on sales forecasts as well as balance-sheet data on realized sales, we document that only major forecast errors are predictable and display autocorrelation. This result is a particular violation of the Full Information Rational...
Persistent link: https://www.econbiz.de/10012839767
The addition of a set of cohort parameters to a mortality model can generate complex identifiability issues due to the collinearity between the dimensions of age, period and cohort. These issues can lead to robustness problems and difficulties making projections of future mortality rates. Since...
Persistent link: https://www.econbiz.de/10012839801