We propose a new approach to measuring the effect of unobservable private information or beliefs on volatility. Using … high-frequency intraday data, we estimate the volatility effect of a well identified shock on the volatility of the stock … that, as the publicly available information becomes stale, volatility effects and its persistance should increase, as the …

for Germany, i.e. the ifo Business Climate Index and the ZEW Indicator of Economic Sentiment. From the methodological …. Announcements of both institutes are also clearly and immediately reflected in the volatility, which remains at a significantly … higher level for approximately two minutes slightly elevated for approximately 15 minutes. Combining returns and volatility …

This study focuses on the impact of innovation policies and R&D collaboration in Germany and Finland. We consider … the firm level. In general, we find that collaboration has positive effects. In Germany, subsidies for individual research …

This study focuses on the impact of innovation policies and R&D collaboration in Germany and Finland. We consider … the firm level. In general, we find that collaboration has positive effects. In Germany, subsidies for individual research …

reveals no major importance of the bank balance sheet channel for the relationship between stock market volatility and …

differences of opinion is left, and hence volatility is decreased. …

at high-frequency controlling for intraday periodicity, volatility clustering and volatility persistence. We find that …