This paper explores price effects caused by the expiration of derivatives in cryptocurrency market. Applying different statistical tests (ANOVA, Mann–Whitney, and t-tests) econometric methods (the modified cumulative abnormal return approach, regression analysis with dummy variables, trading simulation approach) to daily weekly Bitcoin data over period 2018–2021, following hypotheses are tested...

In White is for Witching (2009), Helen Oyeyemi defamiliarizes traditional narratives, subverts the classical doctrines and inserts recent issues. Although her novels are mostly read within scope of gothic literature, she introduces ethnic mythology folklore that provide myriad perspectives. As well as incorporating features, draws from cultural motifs Nigerian roots to highlight recurring patte...

Abstract These considerations illuminate an ontology of the witch by first disclosing how “witch,” as a linguistic gesture, carries world meaning, ethics, and culture being originating in body. Witches witchcraft speak to communal situatedness acknowledging power we have over ourselves, others, that singular lack control often experience everyday life. In dialogue with Ada Agada, Emmanuel Lévin...

We show that the consolidation of orders is important for producing efficient prices, especially during times of high liquidity demand. The NYSE’s centralized opening call market performs better than Nasdaq’s decentralized opening process on typical trading days. The NYSE is much better than Nasdaq on witching days when index arbitrage activity subjects S&P 500 stocks to large, predictable, and...

The domain of knowledge1 is more encompassing than that of wealth and materials. For dealing with utility of knowledge, all factors (its scarcity, its total utility, its marginal utility, specifically its diminishing marginal utility, its utilitarian value, its exchange value, etc.) that influence the evaluation need to be considered. From a communication perspective, knowledge can be traced ba...

this paper presents developing an analytical model for flux switching motors. the motor is a class of variable reluctance motors that has two windings on stator; a field winding and an armature winding. due to saliency of both stator and rotor poles, accurate modeling is difficult which arises from the nonlinear behavior of the machine. this paper presents a simple model which is able to predic...

Regions within the frontal and parietal cortex have been implicated as important neural correlates for cognitive control during conflict resolution. Despite the extensive reciprocal connectivity between the cerebellum and these putatively critical cortical areas, a role for the cerebellum in conflict resolution has never been identified. We used a task-switching paradigm that separates processe...