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This paper uses proprietary data to evaluate the efficacy of single-stock circuit breakers on the London Stock Exchange during July and August 2011. We exploit exogenous variation in the length of the uncrossing periods that follow a trading suspension to estimate the effect of auction length on...
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crashes, excess volatility, serially uncorrelated returns, fat-tailed return distributions and volatility clustering, thereby … regimes with high volatility originate from the fact that speculators extract stronger trading signals out of past stock price …
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