Reevaluating hedging performance

Performance of hedging strategies in interval models

For a proper assessment of risks associated with the trading of derivatives, the performance of hedging strategies should be evaluated not only in the context of the idealized model that has served as the basis of strategy development, but also in the context of other models. In this paper we consider the class of so-called interval models as a possible testing ground. In the context of such mo...

Reevaluating the disengagement hypothesis.

Despite extensive research, the question of the relative contributions of stimulus-driven and goal-directed factors to the allocation of attentional priority at the preattentive stage remains highly controversial. Theeuwes (2010) claims that within a spatially defined window of attention, the most salient object is always granted attentional priority mandatorily and irrespective of the observer...

Reevaluating Runoffs in Latin America

Reevaluating herpes simplex virus hemifusion.

Membrane fusion induced by enveloped viruses proceeds through the actions of viral fusion proteins. Once activated, viral fusion proteins undergo large protein conformational changes to execute membrane fusion. Fusion is thought to proceed through a "hemifusion" intermediate in which the outer membrane leaflets of target and viral membranes mix (lipid mixing) prior to fusion pore formation, enl...

Reevaluating the dead donor rule.

The dead donor rule justifies current practice in organ procurement for transplantation and states that organ donors must be dead prior to donation. The majority of organ donors are diagnosed as having suffered brain death and hence are declared dead by neurological criteria. However, a significant amount of unrest in both the philosophical and the medical literature has surfaced since this pra...