Risk Aversion
Mostrando 25-35 de 35 artigos, teses e dissertações.
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25. Uma aplicaÃÃo do Modelo Principal-Agente : a ANEEL e os concessionÃrios de transmissÃo de energia elÃtrica
A reforma institucional do setor elÃtrico brasileiro implantada em 1998 criou o serviÃo pÃblico de transmissÃo de energia. Esse serviÃo à prestado por um conjunto de concessionÃrios de transmissÃo que disponibilizam suas instalaÃÃes de transmissÃo aos agentes de produÃÃo e de consumo de energia elÃtrica, e atuam sob coordenaÃÃo do Operador Na
Publicado em: 2005
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26. ANÁLISE DE DESEMPENHO DE FUNDOS DE GERENCIAMENTO ATIVO: UM ESTUDO COMPARATIVO / PERFORMANCE ANALYSIS OF ACTIVE MANAGED INVESTMENTS FUNDS A COMPARATIVE STUDY
The scope of this dissertation is the comparison between the meanvariance based performance measurers of active management Brazilian-based stock funds and stochastic dominance of first, second and third orders criteria. 84 funds were considered and the period studied goes from May 1999 to April 2001. For the stochastic dominance calculus a Matlab function wa
Publicado em: 2004
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27. DETERMINANTES DO RISCO-PAÍS: UMA ANÁLISE EMPÍRICA DO BRASIL E DOS PAÍSES EMERGENTES / DETERMINANTS OF COUNTRY RISK : AN EMPIRICAL ANALYSIS OF BRAZIL AND THE EMERGENT COUNTRIES
The expressive flow of external capital directed to the emerging countries along 90 s has been the subject of much academic research developed in the area of international finance. Most of these studies attempt to empirically investigate how much country-especific and global factors constitute significant determinants of capital flow. Similarly, this kind of
Publicado em: 2004
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28. IDENTIFICAÇÃO DE MOMENTOS DE COMPRA E VENDA, À VISTA, DE AÇÕES: UM PROCEDIMENTO ALTERNATIVO INSPIRADO EM GRÁFICOS DE CONTROLE DE PROCESSOS / IDENTIFICATION OF STOCK BUYING AND SELLING MOMENTS IN CASH: AN ALTERNATIVE PROCEDURE INSPIRED BY PROCESS CONTROL CHARTS
This dissertation presents an alternative tool for selecting buying and selling moments for stocks by investors who demonstrate a level of risk-aversion. This procedure, inspired by statistical process control chart, adopts the exceedance of certain limits by data as indicative signals of favourable moments for buying and selling. The monitored data are the
Publicado em: 2004
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29. FATORES EXTERNOS E O RISCO PAÍS / EXTERNAL FACTORS AND THE COUNTRY RISK
The globalization in the financial markets during the last decades brought the concept of country risk to the center of the discussion in international finance. The importance of country risk is related to the fact that, in a high capital mobility environment, it becomes a important determinant of the domestic interest rate. To understand the evolution of th
Publicado em: 2003
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30. Financial Economics under Structural Uncertainty and Low Property Rights: An Agency-Theoretic Perspective
The dissertation investigates three themes related to agency problems in financial markets in developing and transitional economies. These economies are usually plagued with low investor protection and high degrees of structural uncertainty, and hence prone to agency problems. The first chapter develops a stylized model characterized by poor contractual enfo
Publicado em: 2003
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31. Monetary Losses Do Not Loom Large in Later Life: Age Differences in the Framing Effect
Studies of the framing effect indicate that individuals are risk averse for decisions framed as gains but risk seeking for decisions framed as losses. However, findings regarding age-related changes in susceptibility to framing are mixed. Recent work demonstrating age-related decreases in reactivity to anticipated monetary losses, but not gains, suggests tha
Oxford University Press.
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32. Are decisions under risk malleable?
Human decision making under risk and uncertainty may depend on individual involvement in the outcome-generating process. Expected utility theory is silent on this issue. Prospect theory in its current form offers little, if any, prediction of how or why involvement in a process should matter, although it may offer ex post interpretations of empirical finding
The National Academy of Sciences.
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33. Functional Dissociations of Risk and Reward Processing in the Medial Prefrontal Cortex
Making a risky decision is a complex process that involves evaluation of both the value of the options and the associated risk level. Yet the neural processes underlying these processes have not so far been clearly identified. Using functional magnetic resonance imaging and a task that simulates risky decisions, we found that the dorsal region of the medial
Oxford University Press.
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34. A case at last for age-phased reduction in equity.
Maximizing expected utility over a lifetime leads one who has constant relative risk aversion and faces random-walk securities returns to be "myopic" and hold the same fraction of portfolio in equities early and late in life--a defiance of folk wisdom and casual introspection. By assuming one needs to assure at retirement a minimum ("subsistence") level of w
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35. Framing effects and risky decisions in starlings
Animals are predominantly risk prone toward reward delays and risk averse toward reward amounts. Humans in turn tend to be risk-seeking for losses and risk averse for gains. To explain the human results, Prospect Theory postulates a convex utility for losses and concave utility for gains. In contrast, Scalar Utility Theory (SUT) explains the animal data by p
The National Academy of Sciences.