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Through this research, we find that the asymmetric volatility phenomenon is reversed in the Shanghai Stock Exchange … during bull markets. That is, volatility increases more with good news than with bad news. This evidence is inconsistent with … the US markets. Further examination of this phenomenon reveals that the positive impact of good news on volatility is …
Persistent link: https://www.econbiz.de/10013060597
time variation of stock return volatility (GARCH). In the long-term, our results suggest that the US defense firms only …. -- terrorism ; volatility ; GARCH ; event study …
Persistent link: https://www.econbiz.de/10009743349
Ramadan, the holy month for the Muslims, with the market return, volatility and trade volume in the of DSE. Applying GJR … stock market return and volatility. However, Ramadan has a significant negative impact on the daily trade volume of DSE …
Persistent link: https://www.econbiz.de/10012023939
volatility series are being tested for significant reactions to the Brexit event. The results indicate mixed results regarding … the abnormal cumulative return series, but the volatility series were found to be significantly affected by the mentioned …
Persistent link: https://www.econbiz.de/10011964063
time-varying parameter vector autoregression with stochastic volatility. The empirical analysis reveals several new …
Persistent link: https://www.econbiz.de/10012594935
Aggregate implied volatility spread (IVS), defined as the cross-sectional average difference in the implied …
Persistent link: https://www.econbiz.de/10011897782
We implement a novel approach to derive investor sentiment from messages posted on social media before we explore the relation between online investor sentiment and intraday stock returns. Using an extensive dataset of messages posted on the microblogging platform StockTwits, we construct a...
Persistent link: https://www.econbiz.de/10012950889
for a U shape pattern for both returns and volatility. Returns are positive at the opening and closing phases of a trading …
Persistent link: https://www.econbiz.de/10012846901
We investigate the informational content of credit default swap (CDS) spreads for future volatility of (firm) assets … and equity. In the cross-section, CDS spreads are significantly more informative about future asset than equity volatility … fundamental difference in the cross-sectional predictability of asset and equity volatility. This difference lies in the leverage …
Persistent link: https://www.econbiz.de/10012848868
We use realized volatilities based on after hours high frequency returns to predict next day volatility. We extend … inclusion of the preopen variance can improve the out-of-sample forecastability of the next day conditional day volatility … day conditional volatility. Our findings support the results of prior studies that traders trade for non …
Persistent link: https://www.econbiz.de/10014211521