439 research outputs found
Are the least successful traders those most likely to exit the market? A survival analysis contribution to the efficient market debate
No full textConcerns regarding the assumptions of the Efficient Market Hypothesis have led to a greater emphasis on how the behaviour of different groups of traders might impact the evolution of financial markets; ideas encapsulated in the Adaptive Markets Hypothesis (AMH). A key assumption of the AMH is that the dynamics of competition and natural selection will drive ‘noise traders’, those least likely to push prices to efficient levels because they follow sub-optimal trading strategies, to exit the market. To test the key assumptions of the AMH, survival analysis is employed to examine the behaviour of retail spread-traders, a group who are widely reported to include many noise traders. Analysis of the trades executed by 5,164 individuals in the period 24th March 2006 to 7th February 2012 found that the least profitable and those who adopted ill-disciplined trading strategies tended to cease trading sooner than others. These findings are consistent with the AMH. However, profitable traders were also found to be more likely to cease trading than the average trader and a V-shaped relationship was found between a trader’s Sharpe ratio and their likelihood of ceasing to trade (cf. the average trader). Furthermore, during the financial crisis of 2008-09, the disposition effect of traders and the proportion of noise traders increased and throughout the period of the study, the ill-discipline of new generations of traders increased. The results suggest that the forces underpinning the AMH are complex and the move towards market efficiency may not be as straightforward as some expect
Kedelige flødeskumskager:Prosaskitserne i Østerdage er præget af redundans, tomme fraser og en altmodisch stil
No full textKasper HesselbjergProsaskitserne i Østerdage er præget af redundans, tomme fraser og en altmodisch sti
Akademiske fraser til opgaver, projekter og artikler
No full textAkademiske fraser til opgaver, projekter og artikler er en brugsbog til forfattere af akademiske og videnskabelige tekster. Bogen vejleder i hvordan man praktisk kan bruge fraser i fx opgaver, projekter og artikler - på studiet og i profession. Bogens frasesamling baserer sig på en samling af forskningsartikler fra mange forskellige fagområder
Between Asoteriological Aphorisms and Black Gnosis. Emil Cioran, Peter Sloterdijk and Peter Sloterdijk's Cioran
No full textI denne artikel gives en generel præsentation af og introduktion til den rumænske forfatter Emil Ciorans liv og værk. Cioran levede størstedelen af sit liv i selvvalgt eksil i Paris uden for offentlighedens søgelys. Fra sit lille loftskammer på den venstre bred af Seinen publicerede han løbende samlinger af aforismer og essays omhandlende sin egen miserabilisme og permanente eksistentielle ulykke. Endvidere reflekterer han i bøgerne over den menneskelige eksistens vilkår i en verden, hvorfra mennesket ikke har nogen muligheder for at blive forløst. Præsentationen af Cioran fører til en undersøgelse af hans indflydelse på den tyske filosof Peter Sloterdijks værk og tænkning. Gennem en analyse af tekster fra tre forskellige perioder i Sloterdijks forfatterskab viser jeg, at Cioran spiller en vigtig og vedvarende rolle igennem hele Sloterdijks filosofiske arbejde. Således forsøger jeg at konstruere et billede af Sloterdijks Cioran og at forstå hvorfor han anser ham for vigtig.ENGLISH ABSTRACT: This article presents an introduction to the Romanian author Emil Cioran’s life and work. Cioran lived most of his life in self-imposed exile in Paris, where he kept himself out of the public gaze. From his small attic on the left bank of the river Seine, he published numerous collections of aphorisms and essays dealing with his own miserabilism and permanent existential despair. Further, in his books he is reflecting on the human condition in a world where humans have no possibility of receiving nor acquiring salvation or redemption. This presentation of Cioran leads to an investigation of his influence on the work and thought of the German philosopher Peter Sloterdijk. I show that Cioran in fact plays an important and long-lasting role throughout Sloterdijk’s authorship by analysing texts from three different periods of his oeuvre. Thus, I seek to construct a picture of Sloterdijk’s Cioran and understand why he is important to him
Interaktivt Midgård: tønderæs og fanfiction-romancer i Peter Jacksons Hobbitten
No full textRESUMÉI essayet ”On Fairy Stories” afslører forfatter J.R.R. Tolkien to vigtige begreber, der ligger til grund for hans idéer om Midgård og fantasy-litteratur: subskabelse og indlevelse. Mens begreberne har spillet en væsentlig rolle i den fanfiction- og spilkultur, der har omgivet hans værker, er begge også markant tilstede i Peter Jacksons kritiserede filmatisering af Hobbitten. Ved hjælp af strategier lig dem der benyttes af fankulturen, realiserer og udfordrer Jacksons filmatiseringer forfatterens oprindelige intentioner og viser alternative tilgangsmåder til et evigt udvidende Midgård. ABSTRACT In the essay ”On Fairy Stories”, author J.R.R. Tolkien reveals two important concepts behind his creation of Middle-earth and fantasy literature: subcreation and immersion. While both concepts have played a key role in the fanfiction and gaming culture surrounding his works, they are highly present in Peter Jackson’s often criticized adaptation of The Hobbit that uses interactive strategies similar to those applied by the fan culture to both realize and challenge the author’s original intentions while showing alternative ways of approaching an ever-expanding Middle-earth.
Udstigere og immunsystemer, asketer og akrobater. Om Peter Sloterdijks Du musst dein Leben ändern. Über Anthropotechnik
No full textENGLISH ABSTRACT: A presentation and discussion of Peter Sloterdijk’s monumental work from 2009, You Must Change Your Life. The author regards asceticism (in the etymological sense of exercise, training) both as an anthropological constant, the rea-son behind bio-cultural and cultural evolution, and as a special, conscious lifestyle, first formulated in the axial age (from around 500 BC). The analysis can (partly against the author’s own intentions) be seen as an important contribution to an evolutionary history of religion. A fuller understanding of the phenomenon of asceticism as a cultural constant needs, however, the supplement provided by Emile Durkheim’s theory of the ‘negative cult’.DANSK RESUMÉ: En gennemgang og diskussion af Peter Sloterdijks monumentale værk fra 2009, Du musst dein Leben ändern. Fænomenet askese (i betydningen øvelse, træning) ses her dels om en antropologisk konstans, årsagen til bio-kulturel og kulturel evolution, dels som en særlig bevidst livsstil, som først formuleres i aksetiden (fra ca. 500 f.Kr.). Analysen kan (delvis imod forfatterens egne intentioner) ses som et væsentligt bidrag til en evolutionær religionshistorie. Forståelsen af fænomenet askese som kulturhistorisk konstans kan imidlertid med fordel suppleres med inddragelse af Emile Durkheims analyse af ‘negativ kult’.</jats:p
Adskillelse eller isolation: En kulturpsykologisk analyse af Jonestownmassakren
No full textWhen a community seperates itself from society, its survival depends on a delicate balance between separation and isolation. The case to be presented here is the Jonestown Colony in Guyana, visited by the author shortly before its collective suicide. The selfdestruction is analyzed in terms of the psychology of large groups. Within the camp, incestuous relationshipsflourished, and there were unresolved conflicts between individuation and assimilation. It developed to a »greedy institution«, with the leader as the absolute power centre. Isolation, an apocalyptic ideology, and a loss of history, all contributed to the destructionof the cultural Matrix.Når en storgruppe adskiller sig fra storsamfundet, er dets overlevelse betinget af at kunne adskille sig uden at blive isoleret. Ud fra et ophold i Jonestown-kolonien i Guyana kort tid før den begik kollektivt selvmord, analyseres de storgruppefænomener, der betingede afviklingen. Sekten var præget af incestuøse forhold og af uløste konflikter mellem individuation og separation. Lejren udviklede sig til en »grådig institution«, hvor lederen blev lejrens totale magtcentrum. Den totale isolation, de apokalyptiske fortolkninger og det historieløse gav dårlige betingelser for at formulere en kulturens Matrix som overlevelsesesmekanisme
ER BAMSEN DEN SAMME SOM DEN, JEG SÅ FØR? En kritisk evaluering af Meltzoff & Moores identitetsteori, samt de seneste undersøgelser
No full textDenne artikel omhandler spædbarnets erkendelse af objekters numeriske identitet. Første del af artiklen er en fremstilling og dernæst en kritisk evaluering af Meltzoff & Moores identitetsteori. Anden del er en præsentation og diskussion af nogle af de seneste undersøgelser inden for feltet. Det drejer sig om forsøg af Wynn (1992), Simon, Hespos & Rochat (1995) og Wilcox & Baillargeon (i tryk, a; b). Sidst i artiklen forsøger forfatteren kort at sammenfatte den forhåndenværende viden vedrørende spædbørns evner til at individuere objekterThis article is about infants' cognition of objects' numerical identity. The first section of the article is an outline and a critical evaluation of Meltzoff & Moore's identity theory. The second section contains a presentation and a discussion of some of the recent studies within this field of research. The studies in focus are Wynn (1992), Simon, Hespos & Rochat (1995), and Wilcox & Baillargeon (in press, a; b). Finally, the author seeks in brief to systematise the present knowledge concerning object individuation in infants
Atrial protective effects of n-3 polyunsaturated fatty acids: A long-term study in ovine chronic heart failure
No full textBackgroundIt has been suggested that omega-3 polyunsaturated fatty acids (n-3 PUFAs) may prevent the development of atrial fibrillation (AF).ObjectiveThe purpose of this study was to evaluate the impact of these agents on development of the AF substrate in heart failure (HF).MethodsIn this study, HF was induced by intracoronary doxorubicin infusions. Twenty-one sheep [7 with n-3 PUFAs treated HF (HF-PUFA), 7 with olive oil-treated HF controls (HF-CTL), 7 controls (CTL)] were studied. Open chest electrophysiologic study was performed with assessment of biatrial effective refractory period (ERP) and conduction. Cardiac function was monitored by magnetic resonance imaging. Atrial n-3 PUFAs levels were quantified using chromatography. Structural analysis was also performed.ResultsAtrial n-3 PUFAs levels were twofold to threefold higher in the HF-PUFA group. n-3 PUFAs prevented the development of HF-related left atrial enlargement (P = .001) but not left ventricular/atrial dysfunction. Atrial ERP was significantly lower in the HF-PUFA group (P ConclusionIn this ovine HF study, chronic n-3 PUFAs use protected against adverse atrial remodeling by preventing atrial enlargement, fibrosis, and conduction abnormalities leading to shorter AF episodes despite lower ERP.Dennis H. Lau, Peter J. Psaltis, Angelo Carbone, Darren J. Kelly, Lorraine Mackenzie, Michael Worthington, Robert G. Metcalf, Pawel Kuklik, Adam J. Nelson, Yuan Zhang, Christopher X. Wong, Anthony G. Brooks, David A. Saint, Michael J. James, James Edwards, Glenn D. Young, Stephen G. Worthley, and Prashanthan Sander
Economic and fiscal incentives as a means of achieving environmental policy objectives. Hearing of the Committee on the Environment, Public Health and Consumer Protection, 21-22 June 1990 in Brussels. Research and Documentation Papers, Environment, Public Health and Consumer Protection Series No. 16, October 1990
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