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What does ARCH stand for?

ARCH stands for Autoregressive Conditional Heteroskedasticity

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We have 64 other meanings of ARCH in our Acronym Attic

Samples in periodicals archive:

When we consider the short-run dynamics of the demeaned variables through a vector autoregression (VAR) analysis, we show that the error covariance of this VAR model is significantly conditionally heteroskedastic and go on to specifically account for this phenomenon with a VAR-generalized autoregressive conditional heteroskedasticity (GARCH) model.
We propose three alternative specifications of expected future beta based on the past information on realized beta using autoregressive, moving average, and generalized autoregressive conditional heteroskedasticity (GARCH)-in-mean models to obtain time-varying conditional betas for each stock.
There is some evidence for remaining autoregressive conditional heteroskedasticity (ARCH) effects, although marginally, in the equation for the short-term interest rate change and in the equation for the change in the output gap.
This study uses the Autoregressive Conditional Heteroskedasticity (ARCH) models and its extension, the Generalized ARCH, EGARCH and TARCH models was used to find out the presence of the stock market volatility on Indian stock market.