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This paper investigates the use of high frequency data in the estimation of daily and intradaily volatility, in order to compute value at risk (VaR) forecasts for the IBOVESPA. GARCH models and deterministic methods for the filtering of seasonal patterns have been used in the computation of...
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This article evaluates ways of adapting the structure implemented by the Central Bank of Brasil to calculate capital requirements for market risk of fixed interest rates to transactions involving the USD interest rate in Brazil (<i>cupom cambial</i>). Changes to the volatility estimation procedure and...
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