what is heteroskedasticity problem?

Accounting
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what is heteroskedasticity problem?

Feb 16th, 2015

DEFINITION OF 'HETEROSKEDASTICITY'

In statistics, when the standard deviations of a variable, monitored over a specific amount of time, are non-constant. Heteroskedasticity often arises in two forms, conditional and unconditional. Conditional heteroskedasticity identifies non-constant volatility when future periods of high and low volatility cannot be identified. Unconditional heteroskedasticity is used when futures periods of high and low volatility can be identified.


Feb 16th, 2015

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