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This paper provides an up-to-date survey of the main theoretical developments in ACD modeling and empirical studies using financial data. First, we discuss the properties of the standard ACD specification and its extensions, existing diagnostic tests, and joint models for the arrival times of...
Persistent link: https://www.econbiz.de/10012732848
suffer from lack of power in local-to-unity models for the regressor persistence. The main reason is that the near …
Persistent link: https://www.econbiz.de/10013132892
The analysis of return series from financial markets is often based on the Peaks-over-threshold (POT) model. This model assumes independent and identically distributed observations and therefore a Poisson process is used to characterize the occurrence of extreme events. However, stylized facts...
Persistent link: https://www.econbiz.de/10009009682
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...
Persistent link: https://www.econbiz.de/10013118929
We develop a Markov-Switching Autoregressive Conditional Intensity (MS-ACI) model with time-varying transitional parameters, and show that it can be reliably estimated via the Stochastic Approximation Expectation-Maximization algorithm. Applying our model to high-frequency transaction data, we...
Persistent link: https://www.econbiz.de/10012903299
We derive lower and upper bounds on the conditional market autocorrelation index at various investment horizons without … bound on the market conditional autocorrelation index. The upper bound on the market conditional autocorrelation index is … autocorrelation index is -14%. We also document that periods of extremely negative market conditional autocorrelation index coincide …
Persistent link: https://www.econbiz.de/10012858982
This paper examines the impact of intraday periodicity on forecasting realized volatility using a heterogeneous autoregressive model (HAR) framework. We show that periodicity inflates the variance of the realized volatility and biases jump estimators. This combined effect adversely affects...
Persistent link: https://www.econbiz.de/10012063222
In finance, durations between successive transactions are usually modelled by the autoregressive conditional duration model based on a continuous distribution omitting frequent zero values. Zero durations can be caused by either split transactions or independent transactions. We propose a...
Persistent link: https://www.econbiz.de/10011954223
This paper analyzes the implications of autoregressive betas in single factor models for the statistical properties of stock returns. It is demonstrated that this assumption alone is sufficient to account for the most important stylized facts of stock returns, namely conditional...
Persistent link: https://www.econbiz.de/10013149583
The aim of this study is to provide a comprehensive description of the dependence pattern of stock returns by studying a range of quantiles of the conditional return distribution using quantile autoregression. This enables us in particular to study the behavior of extreme quantiles associated...
Persistent link: https://www.econbiz.de/10013113215