A model of building and using synthetic straddles has been developed; it enables an investor to significantly reduce its individual equity risk related to its own basic assets, i.e. shares. The Black-Scholes model, which is regarded as a classical model, cannot be used for this purpose for the...

We highlight important and specific characteristics of default risk and methodological implications. In a simulation contrasting independent, Gaussian and Clayton copulas, we also show that joint default probabilities might be a hidden source of risk in conventional portfolio models of default

The Integrated Energy and Climate Protection Program of the German government includes the political target to double the share of combined heat and power generation (CHP) in Germany from currently about 12% to 25% in 2020. In order to reach this goal a new CHP law was enacted to improve the...

Choosing the number of stocks to hold in a portfolio can significantly affect its risk. We use daily observations for traded equity returns in the US, UK, Japan, Canada and Australia from 1975 to 2011 to simulate portfolios and calculate several measures of risk, including heavy tailed. For each...

This paper analyzes the effect of the recent market crash on the international diversification of equity portfolios from the perspective of dependence structure. We use the generalized Pareto distribution to fit the left and the right tail of each return distribution in order to evaluate the...

This paper considers a paradigm financial markets trades booking and valuation, data subscription and portfolio revaluation system. Traded instruments covered include: spot and forward exchange rates (FX); credit default swaps (CDS); total return swaps (TRS); commodity and bond futures; traded...

We consider the optimal portfolio problem of a power investor who wishes to allocate her wealth between several credit default swaps (CDSs) and a money market account. We model contagion risk among the reference entities in the portfolio using a reduced form Markovian model with interacting...

There is considerable controversy concerning what exactly portfolio diversification is and under what circumstances is it beneficial to investors, particularly in the wake of the most recent financial crisis in 2008. This paper gathers the various approaches on portfolio diversification...

This paper shows the success of valuation risk-time‐preference shocks in Epstein-Zin utility-in resolving asset pricing puzzles rests sensitively on the way it is introduced. The specification used in the literature is at odds with several desirable properties of recursive preferences because...

This study revisits the widely used assumptions in long-term asset allocation: the normal distribution of long-horizon returns and the negligible impacts of estimation errors on the expected returns. This study uses the innovative simulation method of Fama and French (2018) for horizons of up to...