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Master's Dissertation
DOI
https://doi.org/10.11606/D.96.2007.tde-29042008-115430
Document
Author
Full name
Nara Rossetti
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Ribeirão Preto, 2007
Supervisor
Committee
Valle, Mauricio Ribeiro do (President)
Barossi Filho, Milton
Gomes, Rogério
Title in Portuguese
Análise das volatilidades dos mercados brasileiros de renda fixa e renda variável no período 1986 - 2006
Keywords in Portuguese
Renda fixa
Renda variável
Séries temporais
Volatilidade
Abstract in Portuguese
O presente trabalho tem como objetivo analisar a volatilidade dos mercados de renda fixa e renda variável no Brasil, no período de março de 1986 até fevereiro de 2006, por meio do CDI (Certificado de Depósito Interfinanceiro) e IRF-M (Índice de Renda Fixa de Mercado), como indicadores do mercado de renda fixa, e o IBOVESPA (Índice da BOVESPA), como indicador de renda variável. Por meio da comparação da volatilidade destes ativos é possível observar se há coincidência temporal entre os dois mercados, em relação aos picos de volatilidade devido, principalmente, a influência de variáveis macroeconômicas. Tal análise é importante para que os gestores de portfólios, que tomam decisões de como alocar os investimentos, conheçam o histórico e o corrente relacionamento entre as volatilidades dos dois mercados. As volatilidades do mercado de renda fixa e do mercado de renda variável foram calculadas por meio do desvio padrão anual dos retornos mensais e por meio de um modelo GARCH(1,1). Os resultados mostram que, no Brasil, durante o período analisado, os dois mercados apresentaram: períodos coincidentes de picos de volatilidade, grande mudança no padrão comportamental das volatilidades após a implantação do Plano Real e pouca estabilidade na relação entre as volatilidades.
Title in English
Study of the volatility of the fixed income market and the stock market in Brazil in a period of 1986-2006
Keywords in English
Fixed income
Stock market
Time series
Volatility
Abstract in English
This work aims to study the volatility of the fixed income market and the stock market in Brazil, from March 1986 to February 2006, through CDI (Interbank Interest Rate), IRF-M (Fixed Income Index), as a fixed income market indicators, and IBOVESPA (BOVESPA index), as a stock market indicator. Through the comparison of the volatility of these assets it is possible to observe if there is time frame coincidence between the two markets, in relation to the peaks of volatility due to, mainly the influence of macroeconomics variables. Such analysis is important so that portfolio managers, responsible for decisions such investments allocation, know the history and the actual relationship between the markets volatility. Such analysis is important so that portfolio managers, responsible for decisions such investments allocation, know the history and the actual relationship between the markets volatility. Those fixed income market and stock markets volatilities were calculated through the annual standard deviation of the monthly returns and from a GARCH(1,1) model. The results show that, in Brazil, during the studied period, both markets presents: coincident volatility peaks periods, high change in the behavioral pattern of volatility after the deployment of the Plano Real and little stability in the relationship between the volatility.
 
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NaraRossetti.pdf (740.61 Kbytes)
Publishing Date
2008-05-12
 
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