Testing for jumps in a discretely observed price process with endogenous sampling times
内生抽样时点下离散观测价格过程的跳跃检验AI 解读 ↓
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内生抽样时点下离散观测价格过程的跳跃检验AI 解读 ↓
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This paper introduces a novel nonparametric high-frequency jump test for discretely observed Itô semimartingales. Based on observations sampled recursively at first exit times from a symmetric double barrier, our method distinguishes between threshold exceedances caused by the Brownian component and jumps, which enables the construction of a feasible, noise-robust statistical test. Simulation results demonstrate superior finite-sample performance of our test compared to existing methods. An empirical analysis of NYSE-traded stocks provides clear statistical evidence for jumps, with the results highly robust to spurious detections.