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Investigating Causal Relationships in Stock Returns with Temporal Logic Based Methods
Investigating Stock Returns Temporal Logic Based Methods
2010/10/20
We describe a new framework for causal inference and its application to return time series. In this system, causal relationships are represented as logical formulas, allowing us to test arbitrarily co...
Temporal structure and gain/loss asymmetry for real and artificial stock indices
Temporal structure gain/loss asymmetry mutual information
2010/11/1
We demonstrate that the gain/loss asymmetry observed for stock indices vanishes if the temporal dependence structure is destroyed by scrambling the time series. We also show that an artificial index c...
We investigate financial market correlations using random matrix theory and principal component analysis. We use random matrix theory to demonstrate that correlation matrices of asset price changes co...