09
Sep
10

Paper: HF Data y Modelos de estimación

The Information Content of High-Frequency Data for Estimating Equity Return Models and Forecasting Risk

Abstract
We demonstrate that the parameters controlling skewness and kurtosis in popular equity return models estimated at daily frequency can be obtained almost as precisely as if volatility is observable by simply incorporating the strong information content of realized volatility measures extracted from high-frequency data. For this purpose, we introduce asymptotically exact volatility measurement equations in state space form and propose a Bayesian estimation approach. Our highly efficient estimates lead in turn to substantial gains for forecasting various risk measures at horizons ranging from a few days to a few months ahead when taking also into account parameter uncertainty. As a practical rule of thumb, we find that two years of high frequency data often suffice to obtain the same level of precision as twenty years of daily data, thereby making our approach particularly useful in finance applications where only short data samples are available or economically meaningful to use. Moreover, we find that compared to model inference without high-frequency data, our approach largely eliminates underestimation of risk during bad times or overestimation of risk during good times. We assess the attainable improvements in VaR forecast accuracy on simulated data and provide an empirical illustration on stock returns during the financial crisis of 2007-2008.
Link al Paper


0 Responses to “Paper: HF Data y Modelos de estimación”



  1. Leave a Comment

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s


Fun & Finance

Vimeo

Fun & Finance Rollover

Contacto

informes@qfclub.com.ar
"It is hard to be finite upon an infinite subject, and all subjects are infinite." Herman Melville

Powered by

September 2010
M T W T F S S
« Aug   Oct »
 12345
6789101112
13141516171819
20212223242526
27282930  

Categorias

Archivo

Ingrese su dirección de email para suscribirse a este blog y recibir las notificaciones de nuevos posts via email

Join 35 other followers

Web Analytics Clicky

%d bloggers like this: