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Conditional Heteroskedasticity in Asset Returns: A New Approach
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Conditional Heteroskedasticity in Asset Returns: A New Approach
Daniel B. Nelson · Econometrica · 1991
This paper introduces an ARCH model (exponential ARCH) that (1) allows correlation between returns and volatility innovations (an important feature of stock market volatility changes), (2) eliminates the need for inequal...
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