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This paper generalizes the ACD models of Engle and Russell (1998) using the so-called q-Weibull distribution as the conditional distribution. The new specification allows the hazard function to be non-monotonic. We document that the q-Weibull distribution recently suggested in physics as a...
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In finance, durations between successive transactions are usually modelled by the autoregressive conditional duration …
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This paper proposes a new model that captures the interaction between duration and magnitude of changes in asset prices … Heteroskedasticity (EGARCH) model of Nelson (1991) and the Logarithmic Conditional Duration (Log-ACD) model of Bauwens and Giot (2000 …). Despite having the EGARCH model as a special case, the objective of the model is not trying to model conditional duration and …
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In this paper we provide new evidence on the predictability of aggregate stock market returns, and new time series of the expected excess returns on common stocks. We extract aggregate discount rate news from equity portfolio returns and use this information to construct estimates of expected...
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