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greater impact on the conditional volatility than the arrival of good news does. We also found that there exists a positive … tradeoff between the stock market returns and conditional volatility in the Vietnamese stock market. …
Persistent link: https://www.econbiz.de/10011118511
We propose a nonparametric likelihood inference method for the integrated volatility under high frequency financial … likelihood statistic under the constant and general non-constant volatility cases. In contrast to the existing literature, the …
Persistent link: https://www.econbiz.de/10011122384
volatility in Ireland. EGARCH models are used to uncover volatility changes in the periods before and after the introduction of … the new trading product in Ireland. We find that CFDs appear to have lowered asset-specific volatility across the majority … of equities traded on the Irish Stock Exchange. These findings do not correspond to the expected volatility increase …
Persistent link: https://www.econbiz.de/10011122767
The recent relatively high levels of global oil prices have led to a significant improvement in the public finances of several hydrocarbon-exporting countries. However, despite the increase in fiscal buffers, medium-term risks remain high. Fiscal vulnerabilities have increased as a consequence...
Persistent link: https://www.econbiz.de/10011123827
institutions determining tax wedges have an impact on the volatility of the real economy induced by a financial shock. By contrast …
Persistent link: https://www.econbiz.de/10011124116
The instability of commodity prices and the hypothesis that speculative behaviour was one of its causes has brought renewed interest in futures markets. In this paper, the hedging effectiveness of European and US wheat futures markets were studied to test whether they were affected by the high...
Persistent link: https://www.econbiz.de/10011125207
has been the cause of the increased volatility. Policy research has concentrated on the legislative intent of the law and … the following research question: why has agricultural commodity futures price volatility changed over time? Applying quasi … variability (volatility) as a measurement of commodity market behavior. The findings indicate that commodity futures market …
Persistent link: https://www.econbiz.de/10011125342
Observed increased volatility of world commodity prices causes an increase of risk exposure. Thus market participants … volatility in selected EU member states. Results of the analysis indicate a dispersion of volatility among the analyzed countries … indicates a high possibility of outliers’ existence. Volatility of wheat prices is conditional which implies a need of using …
Persistent link: https://www.econbiz.de/10011125633
We investigate a class of semiparametric ARCH(∞) models that includes as a special case the partially nonparametric (PNP) model introduced by Engle and Ng (1993) and which allows for both flexible dynamics and flexible function form with regard to the 'news impact' function. We propose an...
Persistent link: https://www.econbiz.de/10011126295
This review article tries to answer four questions: (i) what are the stylized facts about uncertainty over time; (ii) why does uncertainty vary; (iii) do fluctuations in uncertainty matter; and (iv) did higher uncertainty worsen the Great Recession of 2007-2009? On the first question both macro...
Persistent link: https://www.econbiz.de/10011126328