Showing 21 - 30 of 1,688
In this paper, Extreme value theory (EVT) is applied in estimating low quantiles of P/L distribution and the results are compared to common VaR methodologies. The fundamental theory behind EVT is built, and peaks-over-threshold method is used for modeling the tail of the distribution of losses...
Persistent link: https://www.econbiz.de/10013129257
We elaborate on a new distributional scheme resulting from the generalized Pearson distribution with application to financial modelling. As case studies we consider the major historical indices daily returns, DJIA, NASDAQ composite, FTSE100, CAC40, DAX and S&P500, as well as, high-frequency...
Persistent link: https://www.econbiz.de/10013077936
This paper proposes a new class of estimators based on the inter-quantile-range of intraday returns, referred to as Inter-Quantile-Range-based volatility (IQRBV), to estimate the integrated daily volatility. As the range-based volatility measure, the IQRBV estimate is insensitive to market...
Persistent link: https://www.econbiz.de/10013138933
This article surveys estimation in stationary time series models using the approach of optimal instrumentation. We review tools that allow construction and implementation of optimal instrumental variables estimators in various circumstances - in single- and multi-period models, in the absence...
Persistent link: https://www.econbiz.de/10014056578
, which leads to weak convergence of the test statistic to the supreme of a Gaussian process.In simulations we show that the …
Persistent link: https://www.econbiz.de/10013238351
The convergence of estimators, e.g. maximum likelihood estimators, for increasing sample size is well understood in … many cases. However, even when the rate of convergence of the estimator is known, practical application is hampered by the … convergence of the estimator itself with the analysis of the convergence of stochastic optimization algorithms, e.g. threshold …
Persistent link: https://www.econbiz.de/10010297265
Unit root in output, an exponential 2% rate of convergence and no change in the underlying dynamics of output seem to …-sectional heterogeneity. We show both theoretically, with an aggregation result, and empirically how the uniform 2% rate of convergence …
Persistent link: https://www.econbiz.de/10014070883
Unit roots in output, an exponential 2% rate of convergence and no change in the underlying dynamics of output seem to … uniform (conditional and unconditional) convergence suit first step approximation. We show both theoretically and empirically … how the uniform 2% rate of convergence repeatedly found in the empirical literature is the outcome of an underlying …
Persistent link: https://www.econbiz.de/10014140736
In this paper we specify a multi-factor long-memory process that enables us to estimate the fractional differencing parameters at each frequency separately, and adopt this framework to model quarterly prices in three European countries (France, Italy and the UK). The empirical results suggest...
Persistent link: https://www.econbiz.de/10013071161
Several lessons learned from a Bayesian analysis of basic economic time series models by means of the Gibbs sampling algorithm are presented. Models include the Cochrane-Orcutt model for serial correlation, the Koyck distributed lag model, the Unit Root model, the Instrumental Variables model...
Persistent link: https://www.econbiz.de/10011349180