Made available in DSpace on 2016-04-25T16:45:04Z (GMT). No. of bitstreams: 1 Tiago Alves Costa.pdf: 830440 bytes, checksum: 40b830a47bb712666dd4a4ecfbcde61c (MD5) Previous issue date: 2008-04-29 / The finance science, as all sciences, shows an evolutionary line and according to Kuhn (1970), it is marked by shortly periods of knowledge accumulation. However, according to the author, such periods are inserted with scientific revolutions. In other words, the scientific evolution is stamped by revolutions which abandon oldfashioned paradigm and create new ones. The revolution is followed by a period where the researches are guided by the new paradigm and its purpose is strengthen the own paradigm. In other way, the finance science has today a central paradigm well-known by efficiency market hyperlink (EMH) which was witnessed and adopted by the entire scientific community around the 70 s. And since those times, almost entire research done in finance, mainly until the de 90 s, was leaded and done to validate the EMH. This dissertation attempted to evidence that the finance evolutionary line proposed by Haugen (2000) follows the same principle evidenced by Kuhn (1970), and in the present-day, the EMH find itself in a period which precede the scientific revolution which is called by time crisis by Kuhn (1970). This time crisis could weaken the EMH and open a space to create a new paradigm. This way, the proposal of dissertation is to prove how the revolutionary process will happen in finance too, soon after, to prove what would the candidates more inclined to replace the EMH be as a central paradigm in finance. To do so, this work considered only two candidates: the behavioral finance and the chaos theory. To do this analyze it was used the schooling principles nominated by Mckinley, Mone and Moon (2002). Such authors propose that a thought must display a combination of novelty, continuity, and scope to achieve school status in organizational theory. The purpose of this dissertation is to do a theory ransom which intends to show the fragility of the EMH as a central paradigm that orients the finance researches. The dissertation concludes that the current finance faces a crisis, and in this period, the behavioral finance displays the biggest chance to replace the EMH in the near future, however, the chaos theory provides the bigger promise considering a far future / A ciência das finanças, como toda ciência, apresenta uma linha evolutiva que de acordo com Kuhn (1970) é marcada por períodos de breve acumulação de conhecimento. Porém, de acordo com o autor, tais períodos são intercalados com revoluções científicas. Em outras palavras, a evolução científica é marcada por revoluções que abandonam antigos paradigmas e criam novos. Posteriormente à revolução, segue se um período onde as pesquisas são guiadas pelo novo paradigma com o propósito de fortalecer o próprio paradigma. De outra forma, a ciência financeira possui hoje um paradigma central conhecido como a hipótese de mercados eficientes (HME) que foi reconhecida e adotada pela comunidade científica por volta da década de 70. E desde aquela época, quase toda pesquisa feita na área, principalmente até a década de 90, foi guiada, e feita para validar e fortalecer a própria HME. Nesse sentido, este trabalho procurou evidenciar que a linha evolucionária das finanças proposta por Haugen (2000) segue o mesmo princípio evidenciado por Kuhn (1970), e que no momento atual, a HME encontra-se em um período que antecede a revolução científica e que é chamado de período de crise por Kuhn (1970). Esse período de crise, que antecede as revoluções, poderia enfraquecer a HME e abrir espaço para a criação de um novo paradigma. Sendo assim, o trabalho também propõe a evidenciar como que o processo de revolução poderá acontecer em finanças, e em seguida, também propõe quais seriam os candidatos mais propensos a substituir a HME como paradigma central em finanças. Para tanto, o trabalho considerou apenas dois candidatos: as finanças comportamentais e a teoria do caos. Para fazer tal análise, foram utilizados os princípios de escolarização propostos por Mckinley, Mone e Moon (2002). Tais autores propõem que um pensamento tem que possuir três características (novidade, continuidade e escopo) para ser considerado uma escola em teoria organizacional. O propósito do trabalho é de um resgate teórico básico que procura evidenciar a fragilidade da HME enquanto paradigma principal norteador das pesquisas em finanças. Assim sendo, o trabalho conclui que as finanças atuais enfrentam uma crise, e que nesse período, as finanças comportamentais apresentam a maior chance de substituir a HME em um futuro próximo, porém, a teoria do caos fornece uma promessa maior considerando um futuro mais distante

本研究根據行為財務學中反應不足的理論針對台灣上市股票進行動能策略的研究。首先根據台股1992到2005年之上市股票為樣本進行單純動能策略研究，發現台股具有中期及長期動能現象(長期在此定義為持有期三年)，接著以Fama and French 三因子模型進行風險調整，結果發現動能策略具有顯著的可行性，其報酬不受三因子調整而損失。並再加入公司特徵變數，發現大規模公司具有較大之動能效果，且低帳面市值比公司也具較大之動能效果，而大型股具有較大的動能效果與一般認知的反應不足理論不符，而由後續之研究針對規模及帳面市值比做相關分析發現兩者間具有高度的負相關，因此大型股子樣本與低帳面市值比子樣本可能具高度的雷同，因此大型股的動能策略報酬較高，其實可能反應的是成長股所具有的反應不足現象。 接著根據單純動能表現結果，結合前期兩期表現為條件，組合成中長期動能策略之構想。結果發現，中長期動能策略在大型股與成長股此兩個子樣本集中有較高的可行性。由於中長期動能策略的基礎是建立在運用兩股單純動能策略的力量，因此單純動能策略的顯著性是中長期動能策略能否成功的重要關鍵，也因此由實證結果發現，在不同的子樣本集中，受到其單純動能策略顯著性強弱的影響，使得中長期動能策略的報酬顯著性受到影響，其中尤以低帳面市值比（成長股）之中長期動能策略動能效果最為顯著。

Syfte: Studiens syfte är att undersöka om Riksbankens tillkännagivanden av reporänteförändringar har en effekt på den svenska aktiemarknaden, samt om det råder skillnader mellan fyra branscher i Stockholmsbörsen. Studien syftar även till att undersöka om det kan urskönjas en skillnad mellan branschernas räntekänslighet. Metod: Undersökningen baseras på en eventstudie med ett estimeringsfönster på 60 dagar före tillkännagivandet av reporänteförändringen, och ett eventfönster på 11 dagar. Urvalet består samtliga reporänteförändringar mellan 2001-2015, och av följande branscher, Finans & Fastighet, Industrivaror, Hälsovård, Teknologi, som är inhämtade från Stockholmsbörsen. Teori: Den teoretiska utgångspunkten i studien är teorin om den effektiva marknadshypotesen och teorier om reporäntan. Det presenteras även teorier om diskonteringsräntans effekt samt pris- och inkomstelasticitet. Finansiell psykologi, som är en invändning mot effektiva marknadshypotesen, redogörs dessutom tillsammans med tidigare forskning som har legat till grund för undersökningen. Slutsats: Studien resulterar i att det inte råder ett entydigt samband mellan Riksbankens tillkännagivanden av reporänteförändringar och den svenska aktiekursen. Resultatet illustrerar att det råder en skillnad mellan de valda branschernas räntekänslighet. Det går inte direkt att fastställa att den svenska marknaden är effektiv. / Purpose: The purpose of this study is to examine if Sweden’s central bank announcements of the federal funds rate have an effect on the Swedish stock market, and whether there are differences between four sectors of the Stockholm Stock Exchange. The study also aims to investigate if there is a difference between the sectors interest rate sensitivity.  Method: The study is based on an event study with an estimation window of 60 days prior the announcement of the federal fund rate, and an event window of 11 days. The sample consists of all the announcement of the federal funds rate between 2001- 2015 and the following sectors, Finance & Real Estate, Industrials, Healthcare, Technology, who are acquired from the Stockholm Stock Exchange. Theory: The theoretical basis in this study is the theory of the efficient market hypothesis and theories about the federal funds rate. An introduction to theories about the discount rate and price and income elasticity is also presented in the study. Financial psychology, which is a statement of opposition against the efficient market hypothesis, is also introduced together with previous research which the examination is based on. Conclusion: The results show that there is no unambiguous correlation between Sweden’s central bank announcements of the federal funds rate and the Swedish stock price. The result illustrate that there is a difference between the selected sectors interest rate sensitivity. In summary, it’s established that the Swedish stock market cannot be seen as an efficient market.

This thesis consists of an introductory part and four self-contained papers related to individual financial behavior and risk-taking in financial markets. In Paper [I] we estimate within-family and community social interaction effects upon an individual’s stock market entry, participation, and exit decision. Interestingly, community sentiment towards the stock market (based on portfolio outcomes in the community) does not influence individuals’ likelihood to enter, while a positive sentiment increases (decreases) the likelihood of participation (exit). Overall, the results stress the importance of accounting for family social influence and highlight potentially important differences between family and community effects in individuals’ stock market participation. In Paper [II] novel evidence is provided indicating that the influence from family (parents and partners) and peer social interaction on individuals’ stock market participation vary over different types of individuals. Results imply that individuals’ exposure to, and valuation of, stock market related social signals are of importance and thus, contribute to the understanding of the heterogeneous influence of social interaction. Overall, the results are interesting and enhance the understanding of the underlying mechanisms of social interaction on individuals’ financial decision making. In Paper [III] the impact of divorce ­­­on individual financial behavior is empirically examined in a dynamic setting. Evidence that divorcing individuals increase their saving rates before the divorce is presented. This may be seen as a response to the increase in background risk that divorce produces. After the divorce, a negative divorce effect on individual saving rates and risky asset shares are established, which may lead to disparities in wealth accumulation possibilities between married and divorced. Women are, on average, shown to not adjust their precautionary savings to the same extent as men before the divorce. I also provide tentative evidence that women reduce their financial risk-taking more than men after a divorce, which could be a result of inequalities in financial positions or an adjustment towards individual preferences.   Paper [IV] provides novel empirical evidence that gender identity is of importance for individuals’ financial risk-taking. Specifically, by use of matching and by dividing male and females into those with “traditional” versus “nontraditional” gender identities, comparison of average risk-taking between groupings indicate that over a third (about 35-40%) of the identified total gender risk differential is explained by differences in gender identities. Results further indicate that risky financial market participation is 19 percentage points higher in groups of women with nontraditional, compared with traditional, gender identities. The results, obtained while conditioning upon a vast number of controls, are robust towards a large number of alternative explanations and indicate that some individuals (mainly women) partly are fostered by society, through identity formation and socially constructed norms, to a relatively lower financial risk-taking.

BAKGRUND: Samtidigt som befolkningen blir äldre läggs ett större ansvar på individen att upprätta ett eget pensionssparande. Det blir således viktigare att påbörja sitt pensionssparande vid en yngre ålder. Det bör därför undersökas hur kognitiva motivationsfaktorer förändras över individens livscykel samt hur det interagerar med viljan och möjligheten att pensionsspara. SYFTE: Syftet med denna studie är att ur ett retroaktivt perspektiv låta individer reflektera över vad som påverkat deras beslut gällande det egna pensionssparandet. Detta med fokus på (a) självkontroll, (b) mental accounting samt (c) undvikande av information och beslut. Studien avser att analysera och värdera dessa kognitiva motivationsfaktorer i en livscykelkontext samt hur de interagerar med möjligheten och viljan för att pensionsspara. GENOMFÖRANDE: Studien har genomförts med ett kvalitativt angreppssätt genom semistrukturerade intervjuer med individer i åldrarna 40-65 år. Respondenterna har ställts inför frågor med fokus på studiens tre huvudfaktorer. Genom frågorna har respondenterna fått reflektera över hur dessa faktorer förändrats över tid och hur de varit kopplat till pensionssparandet. SLUTSATS: Individer tenderar att påverkas av specifika händelser i livet och låter dessa påverka deras pensionssparande. Pensionssparandet är lågt i början av det vuxna livet, när individen studerar och bildar familj, för att sedan öka och nå sin högsta nivå då barnen flyttar hemifrån. Dock finns det en personlighetstyp som har en hög grad av självkontroll genom hela livet och upprättar därmed ett pensionssparande vid ung ålder. / BACKGROUND: As people are getting older, the importance of establishing personal retirement savings increases. Therefore, it is more important to begin retirement savings at a younger age. Because of this it needs studying how cognitive motivational factors changes during the life cycle and how they interact with the ability and willingness to save for retirement. AIM: The aim of this thesis is to let individuals reflect on what has affected their decisions regarding retirement savings, in a retroactive perspective. This with a focus on (a) self-control, (b) mental accounting, and (c) information and decision avoidance. The aim of the thesis is to analyze and evaluate these cognitive motivational factors in a life cycle-context, and how they integrate with the ability and willingness to save for the retirement. COMPLETION: The thesis has been conducted using a qualitative approach, through semi-structured interviews with individuals aging from 40-65. The respondents have responded to questions focusing on the thesis’s three main factors. Through these questions, the respondents have reflected on how these factors have changed over time and how they have been connected to retirement savings. CONCLUSION: Individuals tend to be affected by different events in their life and let them affect their retirement savings. Retirement savings are lower in early adult life, when the individual studies and starts a family, and is at its peak when kids move from home. There is also a personality type that has a high level of self-control throughout life and therefore saves for retirement at an early age.

Submitted by Silvania Godoi Ferreira (silvaniagodoi@globo.com) on 2017-01-13T01:42:23Z No. of bitstreams: 1 Dissertação SILVANIA GODOI FERREIRA.pdf: 9535692 bytes, checksum: bdb8772706642edce6d67b8c49088946 (MD5) / Approved for entry into archive by Janete de Oliveira Feitosa (janete.feitosa@fgv.br) on 2017-01-13T12:58:18Z (GMT) No. of bitstreams: 1 Dissertação SILVANIA GODOI FERREIRA.pdf: 9535692 bytes, checksum: bdb8772706642edce6d67b8c49088946 (MD5) / Made available in DSpace on 2017-01-23T13:13:19Z (GMT). No. of bitstreams: 1 Dissertação SILVANIA GODOI FERREIRA.pdf: 9535692 bytes, checksum: bdb8772706642edce6d67b8c49088946 (MD5) Previous issue date: 2016-11-04 / A racionalidade dos agentes econômicos e a hipótese de eficiência de mercado são pressupostos fundamentais da teoria moderna de finanças. Porém, estudos empíricos têm constatado que o comportamento dos investidores nem sempre se mostra racional em tomada de decisão envolvendo risco. A partir dos fundamentos de racionalidade limitada apresentados por Simon (1957) e, posteriormente, estudos desenvolvidos por Kahneman e Tversky (1974 e 1979) sobre vieses cognitivos frequentemente observados no comportamento humano e a perspectiva relativa em tomada de decisão, surgiu o campo de Finanças Comportamentais. Esta dissertação teve por objetivo investigar o efeito da heurística da ancoragem sobre os preços e a tomada de decisão em investimentos imobiliários em fundos de pensão. O setor brasileiro de fundos de pensão conta com 307 instituições e sua carteira imobiliária soma R$ 32,7 bilhões (março/2016). O mapeamento de riscos envolvidos no processo decisório de investimentos é de grande importância para os fundos de pensão cujo objetivo é gerir seu patrimônio para prover o pagamento de benefícios a seus participantes. Neste sentido, o estudo do efeito da heurística da ancoragem sobre os preços dos imóveis contribui como uma forma de identificação de risco para a tomada de decisão em relação a este tipo de investimento. O método de investigação utilizado foi baseado no modelo de mensuração desenvolvido por Jacowitz e Kahneman (1995), cujo objetivo é medir a extensão dos efeitos da ancoragem por meio de um índice de ancoragem (IA). A heurística da ancoragem foi testada, em outros estudos acadêmicos similares, para estimativa de preços de imóveis residenciais. A contribuição deste estudo foi ampliar a pesquisa para imóveis corporativos, categoria de ativo que compõe as carteiras de investimento imobiliários dos fundos de pensão. Os resultados apontaram que a heurística da ancoragem afeta, de forma significativa, a avaliação dos preços dos imóveis e o processo decisório em fundos de pensão. / The rationality of economic agents and the market efficiency hypothesis are fundamental assumptions of the modern finance theory. However, empirical studies have found that investors' behavior are not always rational in decision-making under risk. From the ground for bounded rationality presented by Simon (1957) and studies developed by Kahneman and Tversky (1974 and 1979) on cognitive biases often observed in human behavior and the relative perspective in decision-making, the field of behavioral finance emerged. This work aims to investigate the effect of anchoring heuristic on prices and decision-making in pension funds real estate investments. The pension funds sector has 307 institutions and its real estate portfolio reaches R$ 32.7 billion (March, 2016). Risk mapping involved in the investment decision-making process is of great importance for pension funds whose objective is to manage its assets to provide benefit payments to its participants. Thus, the study of the effect of anchoring heuristics on real estate prices contributes as a way of identifying risk for decision making in relation to this type of investment. The research method was based on the measurement model developed by Jacowitz and Kahneman (1995), which aims at measuring the extent of the anchoring effects by using an anchoring index (AI). The anchoring heuristic was tested in other similar academic studies to estimate residential property prices. The contribution of this study lays on extending the research to corporate real estate, asset category that makes up the real estate investment portfolios of pension funds. The results show that the anchoring heuristic significantly affect property price assessments and the decision-making process in pension funds.

Submitted by Benjamin Liang (benliang_@yahoo.com) on 2017-12-29T20:26:35Z No. of bitstreams: 1 finanças-liang-versão FINAL.pdf: 1473193 bytes, checksum: f546881d098b6f4160c52d20cee1b999 (MD5) / Approved for entry into archive by Vera Lúcia Mourão (vera.mourao@fgv.br) on 2017-12-29T20:40:50Z (GMT) No. of bitstreams: 1 finanças-liang-versão FINAL.pdf: 1473193 bytes, checksum: f546881d098b6f4160c52d20cee1b999 (MD5) / Made available in DSpace on 2018-01-02T12:02:22Z (GMT). No. of bitstreams: 1 finanças-liang-versão FINAL.pdf: 1473193 bytes, checksum: f546881d098b6f4160c52d20cee1b999 (MD5) Previous issue date: 2017-12-05 / Este estudo tem como tema a aplicação de finanças comportamentais nos Fundos de Investimento Imobiliário (FIIs) brasileiros. Finanças comportamentais utilizam a psicologia para estudar o comportamento financeiro dos agentes. O comportamento manada, subtópico de finanças comportamentais analisado neste trabalho, pode ser definido como o movimento sincronizado dos preços dos ativos em uma forma exuberante e irracional que não é justificado pelos fundamentos. Tal questão é pertinente porque finanças comportamentais vai contra as premissas da economia neo-clássica, pilares para a Moderna Teoria de Finanças, das quais as mais relevantes são que os investidores são racionais e tomam decisões de forma independente. O objetivo deste estudo foi investigar a existência do comportamento manada em FIIs no Brasil. Para isso, o trabalho adotou uma abordagem quantitativa, através do modelo proposto por Chang et al. (2000), baseada em pesquisa de levantamento de banco de dados disponível no software Economatica dos retornos diários dos FIIs brasileiros. Adicionalmente, o trabalho também investigou se a existência do comportamento manada é influenciada pela utilização de outros indicadores de retorno de mercado, além do retorno médio transversal proposto por Chang et al. (2000), e pela separação da amostra em dias de alta e queda do retorno. O entendimento da dinâmica desta reação é importante para mapear o comportamento dos investidores em diferentes condições de mercado. Diferente das suposições que se encontraria o comportamento manada em mercados emergentes e em produtos onde os investidores são predominantemente pessoas físicas, os resultados deste trabalho apontam para a inexistência de comportamento manada no mercado brasileiro de FIIs. / The subject of this study is the application of behavioral finance on the Brazilian Real Estate Investment Trusts (REITs). Behavioral finance uses psychology to study the financial behavioral of the agents. Herding effect, a subtopic of behavioral finance analyzed in this study, can be defined as an exuberant and irrational synchronized movement of asset prices which is not justified by their fundamental values. This subject is pertinent because behavioral finance defies neoclassical economics assumptions, keystones for Modern Financial Theory, of which the most relevant are that investors are rational and make decisions independently. The purpose of this study was to investigate the existence of herding effect in the Brazilian REITs. The study adopted a quantitative approach, using the model proposed by Chang et al. (2000), based on daily returns of Brazilian REITs available on the software Economatica. Additionally, the study also investigated if the existence of herding effect is influenced by using other market return indexes, other than the cross-sectional average return proposed by Chang et al. (2000), and by separating the data in days of positive and negative return. Understanding the dynamics of this reaction is important to trace the investors’ behavior under different market conditions. Contrary to the assumptions that herding effect would be found in emerging markets and in investments in which investors are mainly individuals, the results of this study indicate the absence of herding effect in the Brazilian REITs market.

Made available in DSpace on 2010-04-20T20:51:38Z (GMT). No. of bitstreams: 3 166823.pdf.jpg: 20173 bytes, checksum: 2bbaca266d7eb357b90585462947a7be (MD5) 166823.pdf: 1290787 bytes, checksum: e97378374d0f1323f3d7f356922069a2 (MD5) 166823.pdf.txt: 117737 bytes, checksum: 88a0bfc73e648d693920e385a4305d98 (MD5) Previous issue date: 2007-07-02T00:00:00Z / Este trabalho estuda os determinantes de volume de ações negociadas na Bolsa de Valores do Estado de São Paulo, em especial os preços máximo e mínimo das últimas 52 semanas. O estabelecimento de uma relação entre estes preços limite e volume só pode ser explicado através das teorias da área de Finanças Comportamentais, que através do relaxamento de premissas como racionalidade do consumidor e mercados eficientes se propõem a uma maior adequação à realidade. Os teste realizados confirmam haver utilização do preço mínimo das últimas 52 semanas, por parte do investidor, como referência para a tomada de decisão, ocasionando um aumento, acima de mercado, do volume de negociação destas ações no momento em que o preço corrente extrapola o preço mínimo passado. Entretanto, esta mesma relação não foi identificada para o preço máximo das últimas 52 semanas. A identificação de mais esta variável para explicar variações no volume de negociações do mercado de capitais no Brasil contribui tanto para as recentes teorias de Finanças Comportamentais como para o próprio desenvolvimento do mercado financeiro e conseqüentemente do país, sendo, portanto, do interesse de todos. / This academic work studies variables that explain the capital market volume in Brazil, focusing on the last 52-week minimum and maximum prices. The establishment of a relation between the market volume and some past prices can only be explained through Behavioral Finance theories, which abandon some strong premises as rationality and efficient markets to better adapt to reality. All the statistical tests made confirm that investors, in Brazil, make use of the last 52-week minimum prices to take buy-sell decisions. Because of that, we are able to observe that during the weeks where the current prices are below the last 52- week minimum prices, the volume goes up. Unfortunately it was not possible to confirm the same phenomenon for the last 52-week maximum prices. The identification of this other variable to explain the capital market volume in Brazil provides a huge contribution to the area of Behavioral Finance as well as to the capital markets development itself, leading to a further economic growth for the country, an issue of general interest for all of us.

Submitted by Thiago Coupey Giannini (thiago.coupey@unifinance.com.br) on 2018-08-08T17:57:29Z No. of bitstreams: 1 Dissertação Thiago Coupey Giannini.pdf: 597069 bytes, checksum: 421e9a26a55611a2f13cb6f8008d2d52 (MD5) / Approved for entry into archive by GILSON ROCHA MIRANDA (gilson.miranda@fgv.br) on 2018-08-23T19:34:22Z (GMT) No. of bitstreams: 1 Dissertação Thiago Coupey Giannini.pdf: 597069 bytes, checksum: 421e9a26a55611a2f13cb6f8008d2d52 (MD5) / Made available in DSpace on 2018-08-24T19:36:04Z (GMT). No. of bitstreams: 1 Dissertação Thiago Coupey Giannini.pdf: 597069 bytes, checksum: 421e9a26a55611a2f13cb6f8008d2d52 (MD5) Previous issue date: 2018-07-30 / Este trabalho identifica a influência de variáveis socioeconômicas e demográficas, como idade, gênero, tempo investido, área de atuação, estado civil e classe de atendimento na alocação em ações utilizando uma base de dados de clientes de uma empresa de consultoria em investimentos. Em seguida, o presente estudo avalia se a orientação fornecida por esta empresa implica um sharpe ratio maior. Os principais resultados revelam que indivíduos com mais tempo de carteira, homens, com formação em exatas e que possuem assessoria financeira tem uma probabilidade maior de ter ações na carteira. Dentre os indivíduos que possuem ações na carteira, aqueles com maior tempo de investimentos, jovens e solteiros tendem a ter uma alocação em ações na carteira de 35 pontos percentuais a mais. O grupo de clientes private (que possuem assessoria financeira) tende a ter alocação em ações 11 pontos percentuais menor. Por fim, observa-se que esse grupo possui sharpe ratio igual a 2,8 enquanto o grupo varejo possui sharpe ratio igual a 1,9. / This research identifies the influence of socioeconomic and demographic variables, such as age, gender, time invested, field of work, marital status and type of service in the allocation of stocks using a database of clients of an investment consulting firm. Next, the present study evaluates if the financial guidance provided by this company implies a higher sharpe ratio. The main results reveal that individuals that have maintained an investment portfolio for a longer period, men, with majors that are related to exact sciences and that have more financial advise, have a greater probability of having stocks in their portfolio. Among the individuals that have stocks in their portfolio, those that have maintained an investment portfolio for a longer period, young and single, tend to have a larger allocation in stocks, of 35 percentage points more. The group of clients in the private segment (that have more financial guidance) tend to have less stocks, of 11 percentage points less. Lastly, it can be observed that this group has a Sharpe ratio of 2,8 while the retail group has a Sharpe ratio of 1,9.

Submitted by Mila Pires (mila.pires@itau-unibanco.com.br) on 2013-02-20T18:57:30Z No. of bitstreams: 1 Versão_escrita_base_dados_estudos_anteriores_v12.pdf: 455595 bytes, checksum: f92da58e5624182947033d01042c45bf (MD5) / Approved for entry into archive by Suzinei Teles Garcia Garcia (suzinei.garcia@fgv.br) on 2013-02-20T19:07:35Z (GMT) No. of bitstreams: 1 Versão_escrita_base_dados_estudos_anteriores_v12.pdf: 455595 bytes, checksum: f92da58e5624182947033d01042c45bf (MD5) / Made available in DSpace on 2013-02-20T19:10:08Z (GMT). No. of bitstreams: 1 Versão_escrita_base_dados_estudos_anteriores_v12.pdf: 455595 bytes, checksum: f92da58e5624182947033d01042c45bf (MD5) Previous issue date: 2013-02-04 / O objetivo deste trabalho foi testar a presença de dois efeitos no mercado acionário brasileiro: disponibilidade e momento, amplamente estudados para o mercado norte-americano em publicações anteriores. Utilizando uma amostra de 70 empresas foram analisadas séries temporais de retornos mensais do período de ago/2006 a jan/2011, cujos resultados não foram suficientes para rejeitar a hipótese de não eficiência do mercado brasileiro. No teste do efeito disponibilidade, apenas uma das quatro estratégias testadas com a utilização do indicador de retorno do mês anterior da ação gerou retornos positivos (2,27% ao mês), e os indicadores de volume anormal e 'presença na mídia' geraram retornos negativos nas estratégias testadas. No caso do efeito momento, das 16 estratégias estudadas, a única que proporcionou retorno positivo estatisticamente significativo foi a que considerou o período de três meses de formação e manutenção das carteiras (2,01% ao mês). / The objective of this study was to test the presence of two effects in the Brazilian stock market: availability and momentum, widely studied for the American market in previous publications. Using a sample of 70 companies a time series of data returns from Aug/2006 to Jan/2011 was analyzed and the results were not sufficient to reject the hypothesis of an efficient market. In the availability effect test, only one of the four strategies tested using the return of the preceding month indicator had a positive return (2,27% p.m), whilst abnormal volume and "media presence" indicators generated negative returns. In the momentum effect test, out of the 16 studied strategies, the only statistically significant positive return was with portfolio considering three months for the formation and maintenance periods (2,01% p.m).