A Comparison of Financial Duration Models Via Density Forecast
37 Pages Posted: 9 Sep 2005
Abstract
Using density forecast evaluation techniques we compare the predictive performance of econometric specifications that have been developed for modeling duration processes in intra-day financial markets. The model portfolio encompasses various variants of the Autoregressive Conditional Duration (ACD) model and recently proposed dynamic factor models. The evaluation is conducted on time series of trade, price and volume durations computed from transaction data of NYSE listed stocks. The results show that simpler approaches perform at least as well as more complex methods. With respect to modeling trade duration processes, standard ACD models successfully account for duration dynamics whilst none of the models provides an acceptable specification for the conditional duration distribution. We find that the Logarithmic ACD, if based on a flexible innovation distribution, provides a quite robust and useful framework for the modeling of price and volume duration processes.
Keywords: Duration processes, transactions data, intra-day financial markets, density forecast evaluation
JEL Classification: C41, C52, C53, G14
Suggested Citation: Suggested Citation
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