Efficient market hypothesis and Behavioral finance Fall 2011 Teacher: Guðrún Johnsen V-780-BFIM Student: Rúnar Guðnason SSN:1804784939 Table of Contents Introduction ................................................................................................................................ 3 1.1 Efficient market hypothesis .................................................................................................. 3 1.2 A criticism on the efficient market hypothesis ............
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Michael Jensen writes‚ “There is no other proposition in economics which has more solid empirical evidence supporting it than the Efficient Market Hypothesis.” The term ‘Efficient Market Hypothesis’ (EMH) is concerned with the behavior of prices in asset markets. It was initially applied to the stock market‚ but the concept was soon generalized to other asset markets. EMH has also been a subject of debate since its inception
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Empirical Challenges to the Efficient Market Hypothesis 1. Introduction Random walks observed in stock return series prior to the 1970s puzzled a number of financial theorists and practitioners. In 1970‚ this puzzle was resolved by Eugene Fama (1970) who argued that the random walks observed in the behaviour of stock return series could be attributed to market efficiency. Market efficient meant that investors could not consistently make risk-adjusted returns by making investment decisions
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the number possible outcomes that you are interested in divided by the total number of possible outcomes associated with an event * null hypothesis significance testing (NHST) * the null hypothesis states that there is no effect in the population of interest * if the probability of obtaining the data is high‚ the null hypothesis is true * no effect in the population *
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Ed and Deb Sharpio’s hypothesis states that‚” If your heart says that you should do or believe something‚ then you should do or believe it.” To me‚ this is wrong. When you first hear their hypothesis‚ it doesn’t seem so far fetched. We were always told as kids and sometimes even now as young adults to “listen to you heart.” Countless songs‚ books‚ and stories convey this message‚ though I don’t think they meant it as literally as the Sharpios’s. If one were to take what Ed and Deb say literally
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However‚ no one hypothesis has been solely conclusive. In fact‚ hypotheses such as the Siberian volcanism‚ carbon isotope fluctuations and methane production all seem to be linked. The belief that Siberian volcanism was the main trigger for the extinction event seems to be the most valid since it also accounts for release of the CO2 and methane put forth by some researchers. The hypothesis that fluctuations in the carbon cycle and the subsequent release of methane is another hypothesis that has strong
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what extent the ‘somatic-marker hypothesis’ explains how decisions are made in the face of an uncertain outcome. In mind of Kim Sterelny’s (2007) statement that ‘Human Life is one long decision tree’‚ it is not surprising that there has been a vast amount of research into the process of how we evaluate the desirability of alternative choices and select a particular option. One area of research‚ of particular interest here‚ is Damasio’s Somatic Marker Hypothesis (SMH) (1991) which uses the neuroeconomic
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therefore‚ it is relatively easy to see their heart under a microscope‚ which makes it easier to count the number of heartbeats‚ thus‚ making my results more accurate. Hypothesis- Their will be a positive correlation between the concentration of caffeine given to the Daphnia and its heart rate. My reason behind this hypothesis is based on the fact that caffeine affects the heart rate of humans‚ as it is a stimulant. From this‚ I can assume that it also affects the heart rate of Daphnia and
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International Journal of Economics and Finance Vol. 2‚ No. 2; May 2010 Efficient Market Hypothesis and Market Anomaly: Evidence from Day-of-the Week Effect of Malaysian Exchange Nik Maheran Nik Muhammad & Nik Muhd Naziman Abd. Rahman Faculty of Business Management‚ Universiti Teknologi Mara‚ Kelantan Kampus Kota Bharu‚ 15150‚ Kota Bharu‚ Kelantan Malaysia Tel: 60-12-966-5402 E-mail: nmaheran@kelantan.uitm.edu.my Abstract The movements of prices in the stock market are among a few
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The contact hypothesis states that intergroup bias can be reduced by there being contact between social outgroups in appropriate environments. According to Oskamp and Jones (2000)‚ this is the most widely used psychological intervention for reducing prejudice. It has been suggested by Allport (1954) that the conditions needed for this to work are as follows: equality between the two groups has to be a social norm‚ as well as equality of status between the two groups and thirdly‚ there must be cooperation
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