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The joint distribution of stock returns is not elliptical
joint distribution stock returns elliptical
2010/10/21
Using a large set of daily US and Japanese stock returns, we test in detail the relevance of Student models, and of more general elliptical models, for describing the joint distribution of returns. W...
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...
Intraday Patterns in the Cross-section of Stock Returns
Intraday Patterns Cross-section Stock Returns
2010/10/20
Motivated by the literature on investment flows and optimal trading, we examine intraday predictability in the cross-section of stock returns. We find a striking pattern of return continuation at hal...
Portfolio optimization when expected stock returns are determined by exposure to risk
1/n strategy Black–Scholes model expected stock returns Markowitz’ problem portfolio optimization ranks
2010/11/1
It is widely recognized that when classical optimal strategies are applied with parameters estimated from data, the resulting portfolio weights are remarkably volatile and unstable over time.The predo...