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The fine structure of spectral properties for random correlation matrices: an application to financial markets
financial correlation matrices eigenvalue factor models
2011/3/23
We study some properties of eigenvalue spectra of financial correlation matrices. In particular, we investigate the nature of the large eigenvalue bulks which are observed empirically, and which have ...
Marking Systemic Portfolio Risk with Application to the Correlation Skew of Equity Baskets
Marking Systemic Portfolio Risk the Correlation Skew of Equity Baskets
2011/1/4
The downside risk of a portfolio of (equity)assets is generally substantially higher than the downside risk of its components. In particular in times of crises when assets tend to have high correlatio...
Measuring expectations in options markets: An application to the SP500 index
Nonparametric Bayes Dependent Dirichlet process European Options Implied Prices
2010/10/29
Extracting market expectations has always been an important issue when making national
policies and investment decisions in financial markets. In option markets, the most popular way has been to extr...
Comparing Prediction Market Structures, With an Application to Market Making
Market Structures Application Market Making
2010/10/21
Ensuring sufficient liquidity is one of the key challenges for designers of prediction markets. Various market making algorithms have been proposed in the literature and deployed in practice, but the...