Showing 1 - 10 of 265
's dynamic properties may lead to misestimation of the intraday spot volatility. …
Persistent link: https://www.econbiz.de/10011411344
In this paper, we study the dynamic interdependencies between high-frequency volatility, liquidity demand as well as …. Liquidity is causal for future volatility but not vice versa. Furthermore, trade sizes are negatively driven by past trading … ; volatility ; liquidity ; high-frequency data …
Persistent link: https://www.econbiz.de/10003727673
In this paper, we suggest and evaluate specification tests to test the validity of the conditional mean function implied by Autoregressive Conditional Duration (ACD) models. We propose Lagrange multiplier tests against sign bias alternatives, various types of conditional moment tests and...
Persistent link: https://www.econbiz.de/10014053884
Measuring and modeling financial volatility is the key to derivative pricing, asset allocation and risk management … the daily or lower frequency volatility can be obtained by summing over squared high-frequency returns.In turn, this so …-called realized volatility can be used for more accurate model evaluation and description of the dynamic and distributional structure …
Persistent link: https://www.econbiz.de/10003727640
In this paper, we review the most common specifications of discrete-time stochastic volatility (SV) models and … indices and foreign exchange rates. -- Stochastic volatility ; Markov chain Monte Carlo ; Metropolis-Hastings algorithm Jump …
Persistent link: https://www.econbiz.de/10003770817
Persistent link: https://www.econbiz.de/10010344462
models. We show that HF-based predictions yield a significantly lower portfolio volatility than methods employing daily …
Persistent link: https://www.econbiz.de/10009714536
specifications of high-dimensional trading processes. It turns out that common shocks affect the return volatility and the trading …
Persistent link: https://www.econbiz.de/10003634717
In this paper, we study the dynamic interdependencies between high-frequency volatility, liquidity demand as well as …. Liquidity is causal for future volatility but not vice versa. Furthermore, trade sizes are negatively driven by past trading …
Persistent link: https://www.econbiz.de/10010263738
We propose a new estimator for the spot covariance matrix of a multi-dimensional continuous semi-martingale log asset price process which is subject to noise and non-synchronous observations. The estimator is constructed based on a local average of block-wise parametric spectral covariance...
Persistent link: https://www.econbiz.de/10010411945