Understanding the value a customer has to a business is a fundamental problem. Accurate valuations are critical for setting appropriate levels of investment for targeted marketing and for the setting of individual customer service levels. Traditionally semi-qualitative methods using results from...

We present a multi-stage stochastic programming model for managing portfolios of stock and bond indices denominated in multiple currencies. The portfolios are exposed to market risks and currency risks. Uncertainty in asset returns and exchange rates is represented by means of discrete...

The problem of choosing optimal investment and consumption strategies has been widely studied. In continuous time theory the pioneering work by Merton (1969) is a standard reference. In his work, Merton studied a continuous time economy with constant investment opportunities. Since then Merton's...

This paper extends the well known Capital Asset Pricing Model by Sharpe and Lintner to a multi-period context with possibly price dependent preferences. The model is built from individual forward looking agents adopting a portfolio selection scheme similar to the portfolio selection theory...

The research on financial engineering by means of genetic programming is gradually popular and appealing. For example, Kaboudan (1999, 2001) and Iba and Sasaki (1999), Iba and Sasaki (1999), used standard GP to evolve forecasting models. Neely, et al. (1997), Allen and Karjalainen (1999), Fyfe...

This paper investigates the performance of efficient portfolios in a financial market with heterogeneous investors including rational traders, noise traders, and chartists. A generalization of the security market line result states that, regardless of the diversity of beliefs, the portfolios of...

Previous theoretical work by the authors has developed a framework for optimizing portfolio decisions when moments higher than the variance are considered. Apart a significant increase in computational complexity, inclusion of higher order moments implies a careful judgement on which...

This paper focuses on the estimation of mutual fund styles by return-based style analysis. Usually, the investment style is assumed to be either constant through time, or time variation is implicitly accounted for by using rolling regressions. The former assumption is often contradicted by data...

A popular argument states that most of the diversification in a portfolio can be obtained with a rather small number of securities. In this paper we present three algorithms to approach the underlying NP-hard problem of portfolio optimization with a cardinality constraint. All three of these...