VaR-implied tail-correlation matrices

نویسندگان

چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

VaR–implied Tail–correlation Matrices

Empirical evidence suggests that asset returns correlate more strongly in bear markets than conventional correlation estimates imply. We propose a method for determining complete tail–correlation matrices based on Value–at–Risk (VaR) estimates. We demonstrate how to obtain more efficient tail–correlation estimates by use of overidentification strategies and how to guarantee positive semidefinit...

متن کامل

VAR for VaR: Measuring Tail Dependence Using Multivariate Regression Quantiles∗

This paper proposes methods for estimation and inference in multivariate, multi-quantile models. The theory can simultaneously accommodate models with multiple random variables, multiple confidence levels, and multiple lags of the associated quantiles. The proposed framework can be conveniently thought of as a vector autoregressive (VAR) extension to quantile models. We estimate a simple versio...

متن کامل

Extracting implied correlation matrices from index option prices: a statistical approach

We propose a new approach to the model calibration problem, which takes into account the multiplicity of solutions. Starting from a prior distribution on model parameters and a set of observed option prices, we propose a probabilistic construction which yields an arbitrage free pricing rule consistent with these observed option prices. Our approach yields a simple Monte Carlo algorithm for simu...

متن کامل

Correlation Matrices

In this paper we introduce the correlation matrix of a Boolean mapping, a useful concept in demonstrating and proving properties of Boolean functions and mappings. It is argued that correlation matrices are the “natural” representation for the proper understanding and description of the mechanisms of linear cryptanalysis [4]. It is also shown that the difference propagation probabilities and th...

متن کامل

A New Tail-based Correlation

The dependence between assets tends to increase when the market declines. This paper develops a correlation measure focusing on market declines using the expected shortfall (ES), referred to as the ES-implied correlation, to improve the existing value at risk (VaR)-implied correlation. Simulations which define period-by-period true correlations show that the ESimplied correlation is much closer...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Economics Letters

سال: 2014

ISSN: 0165-1765

DOI: 10.1016/j.econlet.2013.10.025