An empirical investigation of the quality of value‐at‐risk disclosure in Australia

2021 ◽  
Author(s):  
Angus Campbell ◽  
Daniel R. Smith
2010 ◽  
Vol 34 (2) ◽  
pp. 362-377 ◽  
Author(s):  
Christophe Pérignon ◽  
Daniel R. Smith

Author(s):  
Buddi Wibowo ◽  
Hasna Fadhila

Market risk measurement of bank investment portfolios is a still problem not only among practitioners, but  also among academicians. The accuracy and quality of market risk disclosures are important issues because  transparency of the bank risk level encourages market control in the form of market discipline and it also  improve the quality of risk management carried out internally by the bank. This research measures the quality of Value at Risk disclosures carried out by Indonesian banks. The accuracy of Value at Risk in this research is measured from the Value at Risk component which contains information of yield volatility of bank trading treasury activities. To measure Value at Risk disclosure, this research runs various methods of Value at Risk measurement. This research shows Historical Simulation is a Value at Risk method that is most widely used by Indonesia banks. The empirical test results show that the Value at Risk parametric method using asymmetric volatility have better quality than the Value at Risk Historical Simulation method. This research shows that Value at Risk as measured by Historical Simulation method contains the least information of bank trading treasury yields. Keywords: value at risk; disclosure; market risk; volatility


Author(s):  
Tomáš Konderla ◽  
Václav Klepáč

The article points out the possibilities of using Hidden Markov model (abbrev. HMM) for estimation of Value at Risk metrics (abbrev. VaR) in sample. For the illustration we use data of the company listed on Prague Stock Exchange in range from January 2011 to June 2016. HMM approach allows us to classify time series into different states based on their development characteristic. Due to a deeper shortage of existing domestic results or comparison studies with advanced volatility governed VaR forecasts we tested HMM with univariate ARMA‑GARCH model based VaR estimates. The common testing via Kupiec and Christoffersen procedures offer generalization that HMM model performs better that volatility based VaR estimation technique in terms of accuracy, even with the simpler HMM with normal‑mixture distribution against previously used GARCH with many types of non‑normal innovations.


2007 ◽  
Vol 29 (4) ◽  
pp. 353-370 ◽  
Author(s):  
Chee Yeow Lim ◽  
Patricia Mui-Siang Tan

2006 ◽  
Vol 09 (02) ◽  
pp. 257-274 ◽  
Author(s):  
Chu-Hsiung Lin ◽  
Chang-Cheng Chang Chien ◽  
Sunwu Winfred Chen

This study extends the method of Guermat and Harris (2002), the Power EWMA (exponentially weighted moving average) method in conjunction with historical simulation to estimating portfolio Value-at-Risk (VaR). Using historical daily return data of three hypothetical portfolios formed by international stock indices, we test the performance of this modified approach to see if it can improve the precise forecasting capability of historical simulation. We explicitly highlight the extended Power EWMA owns privileged flexibilities to capture time-varying tail-fatness and volatilities of financial returns, and therefore may promote the quality of extreme risk management. Our empirical results, derived from the Kupiec (1995) tests and failure ratios, show that our proposed method indeed offers substantial improvements on capturing dynamic returns distributions, and can significantly enhance the estimation accuracy of portfolio VaR.


2019 ◽  
Author(s):  
Mário Seixas ◽  
António M.R.G. Barbosa

2001 ◽  
Vol 44 (2) ◽  
pp. 229-239 ◽  
Author(s):  
Bilha Davidson Arad ◽  
Yochanan Wozner

The decision to remove children at risk from their homes entails serious dilemmas, since both remaining in and being removed have strong negative psychological repercussions. This article presents an empirical investigation of 194 Israeli child protection officers’ decisions on 368 children at risk. Findings showed that while the officers predicted that all the children would have a better quality of life outside their homes, they removed only those where the projected disparity between the alternatives was substantial. That is, they considered not only whether one alternative was better or worse, but how much better or worse. Implications for decisions in “grey areas” are discussed.


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