logo
CanyamAI summaries for academic research
language
MobileMobile
  • Phone FeatureWeChat Mini Program
EnglishEnglish
noticeNotice
BlogBlog
delete
arrow
Return

QUADRATIC ARCH MODELS

delete1995-10-01
delete287
PRE
AI
E
Enrique Sentana
DOI：10.2307/2298081delete
deleteOriginal
deleteOriginal request for help
deleteShare
deleteSave
Abstract

Abstract

En 中文
We introduce a new model for time-varying conditional variances as the most general quadratic version possible within the ARCH class. Hence, it encompasses all the existing restricted quadratic variance functions. Its properties are very similar to those of GARCH models, but avoids some of their criticisms. In univariate applications to daily U.S. and monthly U.K. stock market returns, QARCH adequately represents volatility and risk premia. QARCH is easy to incorporate in multivariate models to capture dynamic asymmetries that GARCH rules out. Such asymmetries are found in an empirical application of a conditional factor model to 26 U.K. sectorial stock returns.
Keywords:
CONDITIONAL HETEROSKEDASTICITY
GARCH PROCESSES
TIME-SERIES
VOLATILITY
REGRESSION
HETEROSCEDASTICITY
STATIONARITY
VARIANCE
RETURNS
ROBUST

Journal

Review of Economic Studies cover
Review of Economic Studies
IF:
6.4
Papers:
2.5K
Citations:
2.1W

Organization

No organization information available
Cited Papers

Cited Papers

No cited papers available