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ARCH and GARCH models vs. martingale volatility of finance market returns

机译:ARCH和GARCH模型与金融市场收益率的mar展波动性

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摘要

ARCH and GARCH models assume either i.i.d. or 'white noise' as is usual in regression analysis, while also assuming memory in a conditional mean square fluctuation with stationary increments. We will show that ARCH/GARCH is inconsistent with uncorrelated increments, violating the i.i.d. and 'white' assumptions, and violating finance data and the efficient market hypothesis as well.
机译:ARCH和GARCH模型假设i.i.d.或“白噪声”,这在回归分析中很常见,同时还假设内存处于条件均方波动且具有固定增量。我们将显示ARCH / GARCH与不相关的增量不一致,从而违反了i.i.d.和“白色”假设,并且违反了金融数据和有效的市场假设。

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