Spillovers de Volatilidades Cambiais e de Mercados Financeiros Internacionais no Mercado Acionário Brasileiro

Wendy Sidon Meira de Oliveira, André Nunes Maranhão
2018 Revista Brasileira de Finanças  
We present in this study the results of volatility spillover in the Brazilian stock market, measured by conditional correlations. Using GARCH multivariate conditional correlations were estimated at 3 different models combining the Ibovespa index of the three types of exchange rate shocks and a shock of international financial markets. The existence and direction of spillovers of volatility of forward exchange shocks, international financial market shocks and the Ibovespa were tested by Granger
more » ... ausality test of second order. The results show the existence of spillovers from exchange rate shocks and financial markets for the Ibovespa index, and these correlations have temporal dynamics, with spillovers always in the direction of the shocks to the Ibovespa index.
doi:10.12660/rbfin.v15n4.2017.63341 fatcat:pizltmgoi5gl3nns4wef6og5te