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We estimate a general microstructure model of the transitory and permanent impact of order flow on stock prices. Jumps are detected in both the transaction price (observation equation) and fundamental value (state equation). The model's parameters and variances are updated in real time. Prices...
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We introduce a software generator for a class of colored (self-correlated) and non-Gaussian noise, whose statistics and …-called q-distribution is a handy source of self-correlated noise for a large range of applications. The q-noise—which tends … smoothly for q = 1 to Ornstein–Uhlenbeck noise with autocorrelation τ—is generated via a stochastic differential equation …
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