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Volatility of financial markets is an important topic for academics, policy makers and market participants. In this … these specifications. Then assuming that the squared returns are the benchmark estimate for actual volatility of the day, I … compare all of the models with respect to how much efficient they are to mimic the realized volatility. At the same time I …
Persistent link: https://www.econbiz.de/10005556286
According to the Mixture of Distributions Hypothesis (MDH), returns volatility and trading volume are driven by a …) volatility and trading volume changes in different financial markets. An implication is that returns volatility in one stock … market should show positive and contemporaneous correlation with returns volatility in another stock market. This paper tests …
Persistent link: https://www.econbiz.de/10005407887
We attempt to explain stock market dynamics in terms of the interaction among three variables: market price, investor opinion and information flow. We propose a framework for such interaction and apply it to build a model of stock market dynamics which we study both empirically and...
Persistent link: https://www.econbiz.de/10011108097
A time-changing volatility binomial tree to price European options is presented followed by an algorithm explaining how …
Persistent link: https://www.econbiz.de/10009323641
Current practice largely follows restrictive approaches to market risk measurement, such as historical simulation or RiskMetrics. In contrast, we propose flexible methods that exploit recent developments in financial econometrics and are likely to produce more accurate risk assessments, treating...
Persistent link: https://www.econbiz.de/10009350247
reveal that trading volume appears to capture a significant part of volatility asymmetric behavior. In general, our results …
Persistent link: https://www.econbiz.de/10011189514
asset pricing framework. The dependence between price movements and future volatility is introduced through a set of latent …
Persistent link: https://www.econbiz.de/10005486770
volatility across different time scales. We call this property asymmetric vertical dependence. It is asymmetric in the sense that … a low volatility state (regime) at a long time horizon is most likely followed by low volatility states at shorter time … horizons. On the other hand, a high volatility state at long time horizons does not necessarily imply a high volatility state …
Persistent link: https://www.econbiz.de/10005329008
macroeconomic analysis, market microstructure analysis and order flow analysis, to forecast the volatility in the foreign currencies …
Persistent link: https://www.econbiz.de/10011156962
We propose two tests for the equality of covariance matrices between two high-dimensional populations. One test is on the whole variance-covariance matrices, and the other is on offdiagonal sub-matrices which define the covariance between two non-overlapping segments of the high-dimensional...
Persistent link: https://www.econbiz.de/10011259210