Listing 1 - 2 of 2 |
Sort by
|
Choose an application
The information contained in news articles plays a key role on financial markets. It may describe changes in the fundamentals of a company or influence the way investors perceive the risk associated with it. This paper aims at measuring with mathematical means the main underlying semantic content of news articles, such that it captures information useful to forecast volatility. A modified EGARCH model with external factors, obtained from a latent semantic alaysis on news articles, is proposed to measure the impact on volatility induced by the latent semantic content of the textual news data. I find that several semantic dimensions play an important role in explaining observed volatility, while others are useful to forecast it. It is likely, that with further research, a model based on semantic content could greatly improve our understanding of the market’s response to news releases.
LSA --- GARCH --- EGARCH --- GARCH-X --- Latent Semantic Analysis --- Volatility Forecasting --- S&P500 --- Lagged corredlations --- Reuters --- News --- News Articles --- Conditional Volatility --- Sciences économiques & de gestion > Finance
Choose an application
Financial econometrics has developed into a very fruitful and vibrant research area in the last two decades. The availability of good data promotes research in this area, specially aided by online data and high-frequency data. These two characteristics of financial data also create challenges for researchers that are different from classical macro-econometric and micro-econometric problems. This Special Issue is dedicated to research topics that are relevant for analyzing financial data. We have gathered six articles under this theme.
tuning parameter choice --- Markov process --- model averaging --- n/a --- steady state distributions --- realized volatility --- threshold --- risk prices --- threshold auto-regression --- bond risk premia --- linear programming estimator --- volatility forecasting --- Bayesian inference --- asset price bubbles --- stationarity --- deviance information criterion --- model selection --- probability integral transform --- forecast comparisons --- Markov-Chain Monte Carlo --- explosive regimes --- multivariate nonlinear time series --- Tukey’s power transformation --- affine term structure models --- Mallows criterion --- nonlinear nonnegative autoregression --- TVAR models --- stochastic conditional duration --- shrinkage --- Tukey's power transformation
Listing 1 - 2 of 2 |
Sort by
|