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We construct a parsimonious test of constancy of the correlation matrix in the multivariate conditional correlation GARCH model, where the GARCH equations are time-varying. The alternative to constancy is that the correlations change deterministically as a function of time. The alternative is a...
Persistent link: https://www.econbiz.de/10013459316
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Autoregressive Conditionally Heteroskedastic (fGARCH) model were applied to study the volatility of the Autoregressive Fractionally …
Persistent link: https://www.econbiz.de/10012487052
This paper investigates whether currency risk is priced differently in the different sectors (industrial, financial, and basic materials) of equity markets in a sample of developed United States of America (USA) and developing economies (Brazil, India, Poland, and South Africa). The paper makes...
Persistent link: https://www.econbiz.de/10013368440
regime in the late 1990s. In particular, we ask whether these interventions have dumped excess exchange rate volatility and … reduced its probability of being in a high volatility state. To do so, we rely on a high-frequency GARCH(1,1) volatility model … that FX interventions in Chile tend to occur during high exchange rate volatility periods, which correlate with domestic …
Persistent link: https://www.econbiz.de/10014382911
Industrial Metals volatility affects G7 stock markets. To this end, the BEKK-GARCH model is used. The sample period spans from 3 … January 2018 to 17 September 2024. The results show that lagged shocks and volatility significantly and positively influence … the current conditional volatility of commodity and stock returns during all periods. In fact, past shocks inversely …
Persistent link: https://www.econbiz.de/10015436785
This paper builds and implements multifactor stochastic volatility models for the international oil/energy markets … (Brent oil and WTI oil) for the period 2011-2021. The main objective is to make step ahead volatility predictions for the … important for market participants, implying predictability. The paper estimates multifactor stochastic volatility models for …
Persistent link: https://www.econbiz.de/10012794710
This study aims to overcome the problem of dimensionality, accurate estimation, and forecasting Value-at-Risk (VaR) and … bulk distribution components. This implies that the combination of a stochastic econometric model with extreme value theory …
Persistent link: https://www.econbiz.de/10012804913
Egypt from 2016 to 2030. Design/methodology/approach: The study applied generalized autoregressive conditional … evaluate the volatility of price of green beans, tomatoes, onions, oranges, grapes and strawberries, respectively. The results … of food price volatility in developing countries is essential, since a significant share of household budgets is spent on …
Persistent link: https://www.econbiz.de/10014279456
This paper proposes a methodology for building Multivariate Time-Varying STCC-GARCH models. The novel contributions in this area are the specification tests related to the correlation component, the extension of the general model to allow for additional correlation regimes, and a detailed...
Persistent link: https://www.econbiz.de/10014281494