Islamic and conventional investment funds have the same purpose. However, unlike conventional funds, Islamic funds offer different investment contracts and have to invest in accordance with a set of selection rules. This dissertation focuses on developing theoretical and empirical analysis...

Risk budgeting interpreted as efficient portfolio allocation is often based on expected outperformance, alpha or information ratio. Once these crucial parameters have been estimated, they are being treated as fixed. In this paper we develop some sense, both theoretical and practical, on the...

This paper documents that at the individual stock level insiders sales peak many months before a large drop in the stock price, while insiders purchases peak only the month before a large jump. We provide a theoretical explanation for this phenomenon based on trading constraints and asymmetric...

We study how asymmetric information affects market volatility in a linear setup where the outcome is determined by forecasts about this same outcome. The unique rational expectations equilibrium will be stable when it is the only rationalizable solution. It has been established in the literature...

Risk budgeting interpreted as efficient portfolio allocation is often based on expected outperformance, alpha or information ratio. Once these crucial parameters have been estimated, they are being treated as fixed. In this paper we develop some sense, both theoretical and practical, on the...

This paper documents that at the individual stock level insiders sales peak many months before a large drop in the stock price, while insiders purchases peak only the month before a large jump. We provide a theoretical explanation for this phenomenon based on trading constraints and asymmetric...

We develop a dynamic model in which traders have differential information about the payoff of the risky asset and trade the risky asset with proportional transaction costs. Firstly, trading volume provides useful information on the asset fundamental value which cannot be inferred from the...

We develop a dynamic model in which traders have differential information about the payoff of the risky asset and trade the risky asset with proportional transaction costs. Firstly, trading volume provides useful information on the asset fundamental value which cannot be inferred from the...

This paper develops a dynamic asset pricing model with persistent heterogeneous beliefs. The model features competitive traders who receive idiosyncratic signals about an underlying fundamentals process. We adapt Futia’s (1981) frequency domain methods to derive conditions on the fundamentals...