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dynamics. Our main goal is to investigate whether high-frequency trading exacerbates market volatility and generates flash … that the presence of high-frequency trading increases market volatility and plays a fundamental role in the generation of …
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We introduce a statistical test for simultaneous jumps in the price of a financial asset and its volatility process … volatility jumps, we design and analyze a nonparametric spectral estimator of the spot volatility process. A simulation study and … important role played by price volatility co-jumps. …
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