The aim of the work titled ?Irrationality in shopping behavior" was to realize several experiments aimed to confirm the irrationality in the shopping behavior and then make cross-cultural comparisons. To allow the comparison of results, were selected experiments already performed by Dan Ariely with American students. During the works were progressively evaluated predetermined hypotheses.

Submitted by Renata Lopes (renatasil82@gmail.com) on 2017-09-27T13:49:03Z No. of bitstreams: 1 marcelodamascenomarangon.pdf: 420801 bytes, checksum: 1541d566ceb0fcd639f11dcc6f27070a (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-09-27T15:20:26Z (GMT) No. of bitstreams: 1 marcelodamascenomarangon.pdf: 420801 bytes, checksum: 1541d566ceb0fcd639f11dcc6f27070a (MD5) / Made available in DSpace on 2017-09-27T15:20:26Z (GMT). No. of bitstreams: 1 marcelodamascenomarangon.pdf: 420801 bytes, checksum: 1541d566ceb0fcd639f11dcc6f27070a (MD5) Previous issue date: 2017-06-24 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / O objetivo principal deste trabalho é contar a origem do número aos alunos do ensino médio, além de exibir alguns métodos de aproximação e curiosidades envolvendo este número irracional. A motivação para a escolha do tema baseou-se no histórico de dificuldades e erros encontrados tantas vezes pelos discentes em sala de aula. Serão tratados métodos de cálculo desde Arquimedes até Ramanujan, passando pelas contribuições de Viète, Wallis, Gregory, Euler e Gauss, todos numa incessante busca pelo mais importante número irracional da matemática. Mostraremos também como a geometria plana e a trigonometria contribuíram na descoberta e investigação desse número, além de sua evolução até os dias de hoje. / This study aims to unveil to the high school students the origin of number , as well as to show some approximation methods and curiosities involving this irrational number. The theme choice was based on history of difficulties and errors found several times by students in the classroom. Will be reviewed calculus methods from Archimedes to Ramanujan, passing through Viète, Wallis, Gregory, Euler, and Gauss contributions, all of them on an unceasing quest for the most important mathematics’ irrational number. We will show also show show plane geometry and trigonometry contributed on discover and investigation of this number, as well as its evolution until today.

Ekonomy i psychology po celém světě vždy zajímala otázka procesu lidského rozhodování. Eko- nomové zd·razňují význam teorie úžitku během rozhodování, kdežto psychologové se zaměřují na r·zné vnitřní a vnější stimuly ovlivňující naše rozhodnutí. Oba tyto přístupy m·žeme najít v be- haviorální ekonomií, kde oba koncepty mezi sebou těsně spolupracují. Znalost r·zných ekonomic- kých i psychologických faktor·, které ovlivňují náš výběr m·že být mimo jiné přínosná například ve výzkumu spropitného. Abychom našli r·zné d·vody pro placení spropitného, vytvořili jsme experiment ohledně výše spropitného u českých zákazník·. Procentuální výše spropitného byla zkoumána v závislosti na pohlaví obsluhy, velikosti skupiny, která navštívila restauraci, velikosti účtu na jednu osobu a také byl zkoumán vliv tří na sobě nezávislých intervencí. Tyto intervence byly zaměřeny na altruistické chování, reciprocitu a dobrou náladu zp·sobenou personalizací. Výsledky experimentu jsou překvapující a neshodují se s výsledky z předchozích experiment·. Bylo zjištěno, že intervence spojené s altruismem a reciprocitou mají negativní vliv na výši spro- pitného, avšak intervence spojená s personalizací nemá žádný vliv na spropitné. Ve výsledku se také poukazuje na klíčový vliv země, ve které je experiment proveden. 1

This dissertation focuses on questions regarding the metaphysical and psychological possibility of self-deception and attempts to show that self-deception is a phenomenon best characterized as both motivated and intentional, such that self-deceivers can be held responsible for their deceptions in a stronger sense than that of being merely epistemically negligent. In Chapter One, I introduce the paradoxes of self-deception, which arise when one attempts to draw a close analogy between self- and other-deception, and I discuss the various ways in which one might characterize an unwarranted belief as irrational. I go on to show how the various ways one understands interpersonal deception may mirror the various accounts one might give of self-deception. I concluded the chapter with a brief discussion of the role of empirical studies in philosophical investigations of irrationality. In Chapter Two, I look more closely at a particular kind of intentionalist account of self-deception, namely the claim that we must suppose the existence of a partitioned mind to make sense of the so-called "internal irrationality" of the self-deceiver. I discuss both stronger and weaker versions of this theory, in an attempt to show that it tends to raise more metaphysical worries than it solves. I argue further that if there is such a thing as divisions within the mind, an account of self-deception centered around such divisions will not get the intentionalist about self-deception what he or she wants. In Chapter Three, I move on to discuss non-intentionalist accounts of self-deception. Such theories have gained in popularity in recent years, due to their appeals to explanatory parsimony. Against these theories, I argued that there are certain phenomenon we take to be central to self-deception that Mele, Barnes, et al. cannot account for. I therefore propose that a more robust account of self-deception is necessary to make sense of these phenomena. Chapter Four attempts to provide such an account. I claim that if we focus more heavily on the diachronic process by which self-deceivers elicit and/or maintain their beliefs over time, what emerges looks much more like an intentional project aimed at the manipulation of one's evidence or evidential standards than a mere more-or-less unconscious process of motivated biasing. I suggest that such a view can escape the paradoxes of self-deception, while at the same time making sense of the features lacking on non-intentionalist accounts. Finally, in Chapter Five I examine the morality of self-deception. I argue that self-deceivers are not only epistemically but also morally responsible for their self-deceptions, and that self-deception generally represents a moral failure on the part of the moral agent, regardless of the normative moral theory one adopts.

Desde o fim da Guerra Fria, os Estados Unidos promoveram a noção da existência de \"Rogue States\", denominando-os \"novos inimigos\". No entanto, o termo confere muitas controvérsias em torno de sua definição, principalmente dos critérios que conferem o rótulo a tais atores. A irracionalidade na tomada de decisões e a busca pela aquisição de armas nucleares se apresentam como características fundamentais. Através da análise dos discursos americanos sobre rogue states, e sob a perspectiva construtivista, podemos depreender que o discurso foi utilizado como forma de corroborar as ações norte-americanas em relação a estes países, ao mesmo tempo em que moldavam as próprias estratégias americanas, uma vez que os atos de fala conferem uma ação em si. As ações tomadas diante de uma situação são definidas a partir da percepção deste fato e do significado que o ator dará a ele. Assim, o apontamento de certos países como sendo Rogue States pelos Estados Unidos serviu para distinguir entre os países do Sistema Internacional \"aqueles que deveriam ser combatidos\". Alguns críticos do termo afirmam que o critério de racionalidade aplicado a estados como Coreia do Norte e Irã é muito mais rigoroso que aquele aplicado aos demais estados, mesmo a USSR durante a Guerra Fria. O presente trabalho pretende avaliar o surgimento do termo rogue state e sua utilização pelo governo norte-americano como política oficial. Através de dois artigos, busca-se entender a construção do conceito de rogue state, levando-se em consideração as teorias construtivistas, principalmente dos teóricos da chamada virada linguística. Uma vez que o debate da irracionalidade está diretamente ligado a busca pela obtenção de armas nucleares - critério-chave para o apontamento como rogue-, pretende-se também avaliar as suposições para tal classificação através da investigação dos programas nucleares dos dois países na atualidade que estão no centro do debate nuclear- Irã e Coreia do Norte. / Since the end of the Cold War, the United States promoted the notion of the existence of \"Rogue States\", designating them as \"new enemies\". However, the term presents many controversies surrounding its definition, especially about the criteria that confer the label to such actors. The irrationality in decision-making and the pursuit of nuclear weapons are presented as the core characteristics of the concept. Through the analysis of American discourses on rogue states, and under the constructivist perspective, one can infer that the speech was used as a way of corroborating the U.S. actions towards these countries, while that shaped the American strategies themselves, once the speech acts are an action itself. Actions taken towards a situation are defined according to the perceptions and meaning the actor will give to it. Thus, the indication of certain countries as Rogue States by the United States served to distinguish among the countries of International System \"those who should be fought\". Some critics of the term argue that the criterion of rationality applied to states like North Korea and Iran is much more rigorous than the one applied to other states, even the USSR during the Cold War. This work intends to evaluate the emergence of the term rogue state and its use by the U.S. government as an official policy. Through two articles, we seek to understand the construction of the rogue state concept, taking into account the constructivist theories, especially the theory of so-called linguistic turn. Since the discussion of irrationality is directly linked to the search for acquiring nuclear weapons - key characteristic of a rogue-, it also intends to evaluate the assumptions for such classification by investigating the nuclear programs of both countries currently at the center of the nuclear debate -Iran and North Korea.

Made available in DSpace on 2016-04-25T19:20:32Z (GMT). No. of bitstreams: 1 Jose Altran.pdf: 1835681 bytes, checksum: 676cdf4ba6912928ccee8a5a2f3d586b (MD5) Previous issue date: 2014-09-12 / The dissertation suggests that an epistemology that listen to irrationality is relevant to face perennial obstacles in the philosophy of science, against which many objects collide. This seems to be an especially useful alternative in the sciences of religion, where we see ourselves immobilized by rationality when engaging researches that are related to their typically unspeakable phenomena. The mystical experience, often taken as the basis of religion, is a scenario that often brings amid its ineffability a sense of univocity - which is, precisely, the horizon of academic making. Would this ineffable hold an episteme? Following the publications of Marcelo Dascal, Henri Bergson and others, it is argued that, overcoming asymmetric impositions of epistemic legitimacy that inhibit controversies, we could find in bergsonian intuitionism a way toward these subjects as elusive as dangerous, since they put the rationality as a functional pillar for science and irrationality as a metaphysical pillar to reality itself. The transformations that the mystics brought to the world throughout history could be taken as signs that not only the irrationality was their compass, but also that it can bring extremely desirable outcomes for humanity, althought impelled by unspeakable epiphanies. Our aim is to gradually create lucid foundations for the study of alleged mystical univocities that invariably would become relative under the eyes of reason / A dissertação sugere que uma epistemologia que dê ouvidos à irracionalidade é pertinente para enfrentarmos entraves perenes na filosofia da ciência, frente aos quais muitos objetos colidem. Esta parece uma alternativa especialmente útil nas ciências da religião, onde nos vemos imobilizados pela racionalidade ao nos engajarmos em pesquisas que guardam relação com seus fenômenos tipicamente indizíveis. A experiência mística, tantas vezes tida como base das religiões, é cenário que frequentemente traz em meio à sua inefabilidade uma sensação de univocidade - justamente o horizonte do fazer acadêmico. Moraria neste inefável uma episteme? Por meio de Marcelo Dascal, Henri Bergson e outros, argumenta-se que, superadas imposições assimétricas de legitimidade epistêmica que inibem controvérsias, poderíamos encontrar no intuicionismo bergsoniano um caminho a seguir frente a esses assuntos tão fugidios quanto delicados, uma vez que coloca a racionalidade como pilar funcional para a ciência, e a irracionalidade como pilar metafísico para a realidade em si. As transformações que os místicos trouxeram ao mundo ao longo da história servem como indício de que não só foi a irracionalidade sua diretriz, como que ela pode trazer resultados objetivos e extremamente desejáveis para a humanidade, mesmo impelidas por epifanias indizíveis. Pretende-se, assim, aos poucos, criar fundamentos lúcidos para o estudo de supostas univocidades místicas que invariavelmente se tornariam relativas sob o domínio da razão

Desde o fim da Guerra Fria, os Estados Unidos promoveram a noção da existência de \"Rogue States\", denominando-os \"novos inimigos\". No entanto, o termo confere muitas controvérsias em torno de sua definição, principalmente dos critérios que conferem o rótulo a tais atores. A irracionalidade na tomada de decisões e a busca pela aquisição de armas nucleares se apresentam como características fundamentais. Através da análise dos discursos americanos sobre rogue states, e sob a perspectiva construtivista, podemos depreender que o discurso foi utilizado como forma de corroborar as ações norte-americanas em relação a estes países, ao mesmo tempo em que moldavam as próprias estratégias americanas, uma vez que os atos de fala conferem uma ação em si. As ações tomadas diante de uma situação são definidas a partir da percepção deste fato e do significado que o ator dará a ele. Assim, o apontamento de certos países como sendo Rogue States pelos Estados Unidos serviu para distinguir entre os países do Sistema Internacional \"aqueles que deveriam ser combatidos\". Alguns críticos do termo afirmam que o critério de racionalidade aplicado a estados como Coreia do Norte e Irã é muito mais rigoroso que aquele aplicado aos demais estados, mesmo a USSR durante a Guerra Fria. O presente trabalho pretende avaliar o surgimento do termo rogue state e sua utilização pelo governo norte-americano como política oficial. Através de dois artigos, busca-se entender a construção do conceito de rogue state, levando-se em consideração as teorias construtivistas, principalmente dos teóricos da chamada virada linguística. Uma vez que o debate da irracionalidade está diretamente ligado a busca pela obtenção de armas nucleares - critério-chave para o apontamento como rogue-, pretende-se também avaliar as suposições para tal classificação através da investigação dos programas nucleares dos dois países na atualidade que estão no centro do debate nuclear- Irã e Coreia do Norte. / Since the end of the Cold War, the United States promoted the notion of the existence of \"Rogue States\", designating them as \"new enemies\". However, the term presents many controversies surrounding its definition, especially about the criteria that confer the label to such actors. The irrationality in decision-making and the pursuit of nuclear weapons are presented as the core characteristics of the concept. Through the analysis of American discourses on rogue states, and under the constructivist perspective, one can infer that the speech was used as a way of corroborating the U.S. actions towards these countries, while that shaped the American strategies themselves, once the speech acts are an action itself. Actions taken towards a situation are defined according to the perceptions and meaning the actor will give to it. Thus, the indication of certain countries as Rogue States by the United States served to distinguish among the countries of International System \"those who should be fought\". Some critics of the term argue that the criterion of rationality applied to states like North Korea and Iran is much more rigorous than the one applied to other states, even the USSR during the Cold War. This work intends to evaluate the emergence of the term rogue state and its use by the U.S. government as an official policy. Through two articles, we seek to understand the construction of the rogue state concept, taking into account the constructivist theories, especially the theory of so-called linguistic turn. Since the discussion of irrationality is directly linked to the search for acquiring nuclear weapons - key characteristic of a rogue-, it also intends to evaluate the assumptions for such classification by investigating the nuclear programs of both countries currently at the center of the nuclear debate -Iran and North Korea.

The ability to take effective decisions is fundamental for successful environmental adaptation and survival. In this thesis, I investigated situations in which decisions appear irrational, at least from certain standpoints. I conducted a behavioural decision-making experiment in two groups of macaques: controls and a group with ventromedial prefrontal cortex/medial orbitofrontal cortex (vmPFC/ mOFC) lesions. Some choices lead to compound outcomes composed of different constituent parts. Control macaques' decisions suggested their estimates of the value of the compound were biased away from the sum of the values of the constituents and towards their mean. Lesions of vmPFC/mOFC diminished the size of the effect so that macaques in some ways appeared to make more rational decisions. Based on the results of this experiment I devised a similar Functional Magnetic Resonance Imaging (fMRI) paradigm with the control animals. This demonstrated strong vmPFC/mOFC activity when similar decisions were made and suggested a value comparison process. In addition, I investigated the role of dopamine in learning using Fast-Scan Cyclic Voltammetry (FSCV), while rats performed a simple decision-making task. Theories about the role of dopamine in learning have focused on the possibility that it codes scalar reward value prediction errors. Less consideration has been given to the possibility that dopamine might reflect prediction errors about reward identities regardless of value. I measured dopamine in the nucleus accumbens when unexpected changes in reward value or identity occurred while rats executed a two-choice two-reward instrumental task. Dopamine levels in the nucleus accumbens reflected reward value prediction errors. In addition, however, they also reflected some information about reward identity under some circumstances. Further investigation suggested that this might be due to differences in the nutritional value of different reward types that did not have clear measurable impacts of behaviour in the tasks that I used.

Bakgrund: Något som många privatpersoner upplever svårt, är att välja aktier att investera i bland de tusentals som finns noterade på  aktiemarknader runt om i världen. Enbart på Stockholmsbörsen i Sverige finns det enligt Nasdaq OMX (2010) 288 stycken noterade aktier att välja mellan på huvudlistorna. En investerare har idag även tillgång till mycket information om företagen vilket bidrar till att det blir svårt att sortera bort vad som är oviktigt. Då målet för många investerare är att slå index är det intressant att titta på investeringsstrategier som kan tänkas slå index på längre sikt. Syfte: Syftet med studien är att undersöka investeringsstrategier på Stockholmsbörsen baserade på nyckeltalen P/E-talet, P/S-talet, P/BV-talet och direktavkastning. Detta för att komma fram till om det är det möjligt att generera överavkastning genom att följa någon eller några av dessa och om det visar sig stämma, komma fram till vilket eller vilka nyckeltal som är att föredra. Metod: Studien bygger på en kvantitativ metod där fyra nyckeltal har undersökts. Resultat: Studiens resultat visar på att det är möjligt att generera överavkastning gentemot index genom att följa en investeringsstrategi baserad på de studerade nyckeltalen. Av strategier som ingår i studien var det de baserade på värdebolag som överlag genererade den högsta avkastningen, både före och efter justering för risk. Därigenom visar studien på att investera i värdebolag gentemot tillväxtbolag är att föredra. Resultatet av studien ger också tecken på att den svenska aktiemarknaden inte är fullt effektiv utan att det förmodligen finns ett inslag av irrationalitet på den. / Background: Something that many individuals finds difficult, is to choose which shares they should invest in among the thousands of listed stocks on stock markets around the world. Only on the Stockholm Stock Exchange in Sweden, there are according to Nasdaq OMX (2010) 288 stocks listed to choose from on the main lists. An investor nowadays also has access to an amount of information about companies that makes it difficult to sort out what is important and not. With the aim of many investors being to beat the index, it is interesting to look at investment strategies that may beat the index over the long term. Aim: The purpose of this study is to study investment strategies on the Stockholm Stock Exchange based on the following financial ratios P/E ratio, P/S ratio, P/BV ratio and dividend yield. This is to investigate if it is possible to generate excess returns by following any of these and if it proves corrects, to choose which of these ratios are preferable to use as investment strategy. Methodology: The study is based on a quantitative method in which four financial ratios were examined. Results: The results show that it is possible to generate abnormal returns exceeding that of index by adopting an investment strategy based on the studied ratios. Of the studied strategies those based on value stocks generally generated the highest returns, both before and after adjustment for risk. This study shows that an investment in value stocks is preferable to one in growth stocks. The result of this study also provides evidence that the Swedish stock market may not be fully efficient and probably is affected by irrationality.

This article proposes a reflection on the irrational aspects of justice and legality that remain veiled in the debate on the difficulties of judicial reform processes in our region and which are expressed harshly in gender violence. Psychoanalytic contributions on culture state that the existence of the unconscious (the instinctual life of the subject) is that which enables the establishment of the law. From this perspective, conflict is inherent in human beings and the anxieties it arouses cannot be bypassed or denied. Therefore, the establishment of limits and a healthy expression of aggression depend on the internal construction of legality in the subject. On the intersubjective level, the mismatch between the expectations of the population and justice operators is associated with the confusion between social reality and the real (Lacan), generating a basic misunderstanding to be solved. As a method, fundamental psychoanalytic concepts are employed and situations of violence against women from Peruvian rural communities are discussed. The paper concludes that it is essential to any process of change or reform to work around the elaboration of anxieties that block the task in institutions and groups. This work facilitates access to justice, while generating new knowledge in this field. / El presente artículo propone una reflexión sobre los aspectos irracionales de la justicia y la legalidad que permanecen velados en el debate sobre los procesos de reforma judicial en nuestra región. Estas dificultades se expresan de manera descarnada en la violencia de género. Los aportes psicoanalíticos sobre la cultura permiten postular que la existencia del inconsciente (la vida pulsional del sujeto) es aquello que posibilita la instauración de la ley. Desde esta perspectiva, el conflicto resulta inherente al ser humano y las ansiedades que este despierta no pueden ser soslayadas o negadas. Por ello, la instauración de límites y la expresión saludable de la agresión dependerá de la construcción interna de la legalidad en el sujeto. En el plano intersubjetivo, el desencuentro entre las expectativas de la población y los operadores de justicia se asocia con la confusión entre la realidad social y lo real (Lacan), generando un malentendido básico a resolver. Como método, se emplean conceptos psicoanalíticos fundamentales y situaciones de violencia contra la mujer de comunidades rurales peruanas. Se concluye que es imprescindible, para cualquier proceso de cambio o reforma, permitir espacios para elaborar las ansiedades que bloquean la tarea en las instituciones y grupos humanos. Esta labor facilita el acceso a la justicia, a la vez que genera un nuevo conocimiento en este campo.