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Heteroskedasticity In statistics, a sequence or a vector ... assumed to be drawn from identical distributions. Heteroskedasticity is a violation of this assumption. For ... with cross sectional or time series measurements. Heteroskedasticity is often studied as part of econometrics ... most textbooks limit themselves to dealing with heteroskedasticity in general, or one or two examples ... therefore be either understated or overstated. Examples Heteroskedasticity often occurs when there is a ...
http://en.wikipedia.org/wiki/Heteroskedasticity - 5k - Cached - Similar pages

Talk:Heteroskedasticity Possible heteroskedasticity of residuals can be find by using White's Heteroskedasticity Test on data. Heteroskedasticity problem can be avoided using Weighted Least ... for 'heteroskedastic', 'heteroscedasticity' gives 67 items whereas 'heteroskedasticity' gives 17. -- ...
http://en.wikipedia.org/wiki/Talk:Heteroskedasticity - 3k - Cached - Similar pages

Autoregressive conditional heteroskedasticity
Autoregressive conditional heteroskedasticity In econometrics, an autoregressive conditional heteroskedasticity (ARCH) model considers the variance of the ... the model is a generalized autoregressive conditional heteroskedasticity (GARCH) model. Generally, when testing for heteroskedasticity in econometric models, the best test is ... both. References Tim Bollerslev. "Generalized Autoregressive Conditional Heteroskedasticity", Journal of Econometrics, 31:307-327, ...
http://en.wikipedia.org/wiki/Autoregressive_conditional_heteroskedasticity - 2k - Cached - Similar pages

ARCH   (translated from Italian)
... a model ARCH (from inglese AutoRegressive Conditional Heteroskedasticity, model or autoregressivo and conditionedly eteroschedastico process ... references Bollerslev, T. (1986), Generalized Autoregressive Conditional Heteroskedasticity, Journal of Econometrics 31, 307-327 Engle, R. (1982), Autoregressive Conditional Heteroskedasticity with Estimates of Variance of United Kingdom ...
http://it.wikipedia.org/wiki/ARCH - 2k - Cached (Italian) - Wikipedia (Italian) - Similar pages

... think it should simply be merged into heteroskedasticity, or perhaps just redirected there (that article ... S. this should be discussed at Talk:Heteroskedasticity, not here. --Trovatore 08:00, 21 December ...
http://en.wikipedia.org/wiki/Talk:Heteroscedacity - 1k - Cached - Similar pages

Breusch-Pagan statistic
... Breusch-Pagan statistic used to test for heteroskedasticity in a linear regression. It tests whether ... we can reject the hypothesis of no heteroskedasticity.
http://en.wikipedia.org/wiki/Breusch-Pagan_statistic - 1k - Cached - Similar pages

Robert F. Engle
... volatility and low volatility periods (“Autoregressive Conditional Heteroskedasticity: ARCH”). These statistical models have become essential ... theory and practice. Selected works Autoregressive Conditional Heteroskedasticity With Estimates of the Variance of U ...
http://en.wikipedia.org/wiki/Robert_F._Engle - 5k - Cached - Similar pages

... mean Association (statistics) Autocorrelation Autocovariance Autoregressive conditional heteroskedasticity Autoregressive integrated moving average Autoregressive moving average ... Halton sequences Heaps' law Helmert-Wolf blocking Heteroskedasticity Hidden Markov model Hirsch number Histogram Homogeneity ...
http://en.wikipedia.org/wiki/Category:Statistics - 9k - Cached - Similar pages

Talk:ARCH models/Delete
... debate was to redirect to Autoregressive conditional heteroskedasticity. Utterly unpronounceable dicdef of an acronym. - Lucky ... ve redirected ARCH models to autoregressive conditional heteroskedasticity. The latter is stubby but at least ...
http://en.wikipedia.org/wiki/Talk:ARCH_models/Delete - 2k - Cached - Similar pages

Model (economics)
... and related ones such as autoregressive conditional heteroskedasticity (ARCH) and GARCH models for the modelling of heteroskedasticity. Non-stochastic mathematical models may be purely ...
http://en.wikipedia.org/wiki/Model_(economics) - 50k - Cached - Similar pages

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