This work aims to investigate the (inter)relations of information arrival, news sentiment, volatility and jump dynamics … volatility modelling is justified in our specific calibration samples (2008 and 2013, respectively). However, our results reject …

rate is focused on modeling its volatility. In contrast, this paper provides empirical analysis regarding the news impact … on the EUR/ALL exchange rate volatility, using TGARCH model. We argue that the series has three important features of … asset return proposed by the theory: unpredictability, fat tails and volatility clustering. The results show the existence …

This paper examines the effect of foreign exchange news announcements on the volatility of stock returns in Nigeria … volatility equations. The empirical results revealed a positive and significant effect of exchange news announcements on stock … market volatility in Nigeria under symmetric conditional variance. However, there was strong evidence of asymmetric effect …

market was shown to react to news unequally. Volatility spikes sharply when unexpected adverse news reaches the market while …

direction of company-specific news. Information-implied reactions in returns, volatility as well as liquidity demand and supply … London Stock Exchange (LSE), we find market-wide robust news-dependent responses in volatility and trading volume. However … shown. -- firm-specific news ; news sentiment ; high-frequency data ; volatility ; liquidity ; abnormal returns …

reflect information-driven and noise-induced volatilities. We find that all volatility components reveal distinct dynamics and … significantly declines thereafter. Moreover, news-affected responses in all volatility components are influenced by order flow … imbalances. -- efficient return ; macroeconomic announcements ; microstructure noise ; informational volatility …

direction of company-specific news. Information-implied reactions in returns, volatility as well as liquidity demand and supply … London Stock Exchange (LSE), we find market-wide robust news-dependent responses in volatility and trading volume. However … shown. -- Firm-specific News ; News Sentiment ; High-frequency Data ; Volatility ; Liquidity ; Abnormal Returns …

reflect information-driven and noise-induced volatilities. We find that all volatility components reveal distinct dynamics and … significantly declines thereafter. Moreover, news-affected responses in all volatility components are influenced by order flow … imbalances. -- Efficient Return ; Macroeconomic Announcements ; Microstructure Noise ; Informational Volatility …

reflect information-driven and noise-induced volatilities.We find that all volatility components reveal distinct dynamics and … significantly declines thereafter. Moreover, news-affected responses in all volatility components are influenced by order flow … imbalances. -- effcient return ; macroeconomic announcements ; microstructure noise ; informational volatility …

reflect information-driven and noise-induced volatilities. We find that all volatility components reveal distinct dynamics and … significantly declines thereafter. Moreover, news-affected responses in all volatility components are influenced by order flow …