761 research outputs found
The Paraconsistent Approach to Quantum Superpositions Reloaded: Formalizing Contradictory Powers in the Potential Realm
In [7] the authors of this paper argued in favor of the possibility to
consider a Paraconsistent Approach to Quantum Superpositions (PAQS). We claimed
that, even though most interpretations of quantum mechanics (QM) attempt to
escape contradictions, there are many hints -coming from present technical and
experimental developments in QM- that indicate it could be worth while to
engage in a research of this kind. Recently, Arenhart and Krause have raised
several arguments against the PAQS [1, 2, 3]. In [11, 12] it was argued that
their reasoning presupposes a metaphysical stance according to which the
physical representation of reality must be exclusively considered in terms of
the equation: Actuality = Reality. However, from a different metaphysical
standpoint their problems disappear. It was also argued that, if we accept the
idea that quantum superpositions exist in a (contradictory) potential realm, it
makes perfect sense to develop QM in terms of a paraconsistent approach and
claim that quantum superpositions are contradictory, contextual existents.
Following these ideas, and taking as a standpoint an interpretation in terms of
the physical notions of power and potentia put forward in [10, 12, 15], we
present a paraconsistent formalization of quantum superpositions that attempts
to capture the main features of QM.Comment: 26 pages, no figures. arXiv admin note: substantial text overlap with
arXiv:1502.05081, arXiv:1404.5186, arXiv:1506.0737
Overconfidence and excess entry: a comparison between students and managers
Overconfidence can lead to excessive business entry. Here we replicate the pioneer experiment finding this nexus (Camerer and Lovallo 1999) and extend it in two major directions: (1) to consider managers as well as student subjects and (2) to explicitly take into account selected characteristics of the manager subjects. We find that managers are more prone to the nexus overconfidence-excess entry than students are. In particular, we find that left-handed, married, and emotionally aroused managers are more prone to excess entry.excess business entry, overconfidence, unrealistic optimism
Stock selection based on cluster analysis
We put forward a technique based on cluster analysis to group stocks in spot markets according to a risk-return criterion. We show how an informed investor will make money using the cluster analysis to select stocks of major companies from North and South America.
Disposition effect and gender
Investors seem to hold on to their losing stocks to a greater extent than they hold on to their winning stocks. This well-document behavioral regularity is termed disposition effect (Shefrin and Statman 1985). We set an experiment to replicate results from a previous study of the disposition effect (Weber and Camerer 1998), and further show that a subjectâs gender may interfere with the effectâs detection.
Opening address: Paraconsistent logic
I am honoured with and touched by the invitation of delivering the opening address of this Congress. Firstly, to see paraconsistent logic flourishing and growing, as we can readily see by simply glacing over the programme of this conference, is among one of my greatest joys. Secondly, and equally important, because this congress takes place in the University of ToruĆ.I am honoured for having lectured here, a most congenial and stimulating place, and could not think of a better place for a conference dedicated to the memory of StanisĆaw JaĆkowski. In particular, I am delighted for having had a correspondence with him, and although I was deprived of the pleasure of meeting him personally, I was fortunate enough for having collaborated with some of his disciples, such as L. Dubikajtis and T. Kotas. All and all, ToruĆ in particular and Poland in general are for me a second home, for all the kindness and care everyone has shown to me over several years, since my very first visit to this country
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