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Previous issue date: 2016-10-05 / In a professionalizing business environment, i.e. one in which there is a clear separation between administrators and investors, there is a great chance to occur the agency conflict, where there is always the risk that administrators act in their own interests and not in favor of maximizing the value of the company. One of the ways that this conflict is revealed in the stock market is through the risk inherent in the company's activities, and this risk is called non-systematic risk. A measure of risk in the stock market is the volatility, and it is decreased through corporate governance mechanisms. The main purpose of this thesis is to check the impact of corporate governance mechanisms over the volatility of securities traded in the BM&F Bovespa over the period comprised between 2010 and 2015, and for such purpose data from 53 listed companies representing 81.15% of the Ibovespa index, and the model of pillars of corporate governance called Brazilian Corporate Governance Index (Brazilian CGI) were used. For the sake of good understanding of this thesis, volatility is the variation of returns over the period analyzed; panel data was used as statistical model, and the main internal mechanisms of corporate governance are based on IBGC's four pillars, namely: (1) Accountability; (2) Transparency; (3) Corporate Responsibility and (4) Accountability. The statistical results indicated that variables related to accounting indicators and macroeconomic variables have an association with volatility reduction, and that factors directly linked to the pillars were not statistically significant. / Em um ambiente de neg??cios profissionaliza, ou seja, em que h?? uma separa????o clara entre os administradores e os investidores, h?? uma possibilidade grande de ocorrer o conflito de ag??ncia, onde h?? sempre o risco de que os administradores ajam em favor dos seus pr??prios interesses e n??o em prol da maximiza????o do valor da empresa; Uma das formas que esse conflito se revela no mercado de a????es ?? atrav??s do risco inerente ??s atividades da companhia, a esse risco d??-se o nome de risco n??o sistem??tico. Dentro do mercado de a????es uma medida de risco ?? a Volatilidade e a mesma ?? reduzida pelos mecanismos de Governan??a Corporativa. Esta disserta????o tem por objetivo principal verificar o impacto dos mecanismos de Governan??a Corporativa na Volatilidade dos pap??is da BM&F Bovespa no per??odo de 2010 e 2015 para tal, foram utilizados dados de 53 companhias que representam 81,15% do ??ndice Ibovespa e o modelo dos pilares de Governan??a Corporativa chamado de Brazilian Corporate Governance Index (Brazilian CGI). Para entendimento dessa disserta????o a Volatilidade ?? a varia????o dos retornos ao longo do per??odo analisado e utilizou-se como modelo estat??stico de dados em painel e os principais mecanismos internos de Governan??a Corporativa se baseiam nos quatro pilares do IBGC a saber: (1) Presta????o de Contas; (2) Transparencia; (3) Responsabilidade Corporativa e (4) Presta????o de Contas. Os resultados estat??sticos indicaram que vari??veis relacionadas a indicadores cont??beis e macroecon??micas possuem associa????o com a redu????o da Volatilidade e que fatores diretamente ligados aos pilares n??o se mostraram estatisticamente significativos.
| Identifer | oai:union.ndltd.org:IBICT/oai:132.0.0.61:jspui/731 |
| Date | 05 October 2016 |
| Creators | Silva, Fabricio Henrique da |
| Contributors | Silva, Aldy Fernandes da, Nakamura , Wilson Toshiro, Weffort, Elionor Farah Jreige |
| Publisher | FECAP, Mestrado em Ci??ncias Cont??beis, FECAP, Brasil, Funda????o Escola de Com??rcio ??lvares Penteado |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações do FECAP, instname:Fundação Aramando Álvares Penteado, instacron:FAAP |
| Rights | http://creativecommons.org/licenses/by-nc-nd/4.0/, info:eu-repo/semantics/openAccess |
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