2012
DOI: 10.1590/s0104-530x2012000400009
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Value-at-Risk da Carteira do Ibovespa: uma análise com o uso de modelos de memória longa

Abstract: This study proposes a comparative analysis of the use of ten volatility models to calculate the Value-at-Risk (VaR) Grandes desastres financeiros ocorrem, geralmente, pela falta de monitoramento adequado das operações financeiras. Em cenários assim, a gestão de risco ganha força nas instituições financeiras e o estabelecimento de mecanismos de proteção e gestão se torna não só uma importante arma contra as oscilações dos preços dos ativos investidos, mas também ferramenta de análise de investimento. Por cons… Show more

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Cited by 2 publications
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“…In this way, the VaR provides an indication of the probability of a potential change in the value of a portfolio resulting from the change in market conditions over a given period of time by demonstrating how likely the VaR measure can be exceeded (Crouhy et al, 2006). Gaio & Pimenta (2012) point out that VaR is one of the most important market risk measurement tools and, undoubtedly, the one most used by institutions and risk managers. Estimating the maximum expected loss, within a period of time and a given level of confidence, one has the known market risk.…”
Section: Introductionmentioning
confidence: 99%
“…In this way, the VaR provides an indication of the probability of a potential change in the value of a portfolio resulting from the change in market conditions over a given period of time by demonstrating how likely the VaR measure can be exceeded (Crouhy et al, 2006). Gaio & Pimenta (2012) point out that VaR is one of the most important market risk measurement tools and, undoubtedly, the one most used by institutions and risk managers. Estimating the maximum expected loss, within a period of time and a given level of confidence, one has the known market risk.…”
Section: Introductionmentioning
confidence: 99%
“…Inúmeras pesquisas, tanto na literatura nacional (CERQUEIRA, 2013;GAIO e PIMENTA JÚNIOR, 2012;MACIEL et al 2012;COSTA FILHO e ROCHA, 2010;BA-ROSSI-FILHO, ACHCAR e SOUZA, 2009;MEDEIROS e DOORNIK 2008;GABE e PORTUGAL, 2004), quanto internacional (NIELSEN e SHEPHARD, 2002, HANSEN e LUNDE, 2005, SHAIKH e PADHI, 2014TAYEFI e RAMANATHAN, 2012;ATA-BOONWONGSE, 2012, LIU e CAO, 2011, BELHOUJA e BOUTAHARY, 2010) têm sido feitas com o objetivo de determinar qual estimador prediz com maior eficiência a volatilidade de uma variável.…”
Section: Introductionunclassified