Testing whether jumps have finite or infinite activity
检验跳跃具有有限活动性还是无限活动性AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接研究高频离散观测下的半鞅跳跃检验,并明确以高频股票收益数据作为实证应用。
反馈分类问题检验跳跃具有有限活动性还是无限活动性AI 解读 ↓
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We propose statistical tests to discriminate between the finite and infinite activity of jumps in a semimartingale discretely observed at high frequency. The two statistics allow for a symmetric treatment of the problem: we can either take the null hypothesis to be finite activity, or infinite activity. When implemented on high-frequency stock returns, both tests point toward the presence of infinite-activity jumps in the data.
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