This paper examines how regulatory interventions can affect the market risk of electricity utilities and telecom carriers traded in the Brazilian stock market. Our article uses a bivariate Generalized AutoRegressive Conditional Heteroskedasticity (GARCH - BEKK) model to analyze the impact of two...

This paper examines how regulatory interventions can affect the market risk of electricity utilities and telecom carriers traded in the Brazilian stock market. Our article uses a bivariate Generalized AutoRegressive Conditional Heteroskedasticity (GARCH - BEKK) model to analyze the impact of two...

This aim of this paper is to test whether or not there was evidence of financial crises ‘contagion’. The sovereignty debt bonds data for Brazil, Mexico, Russia and Argentine were used to implement such test. The ‘contagion’ hypothesis is tested using multivariate volatility models....

Resumo: São testadas duas formas distintas de assimetria cíclica, a deepness e a steepness, através da aplicação do teste do coeficiente de enviesamento e do teste triples. A assimetria é analisada em vinte e três países, segundo uma perspectiva secular do PIB real per capita (1820/70 a...

The present study wants to analysis the relations of causality and the effects of the imports of energy in economic growth of the USA. VAR methodology associated with Granger causality analyses are used to investigate the relations between energy imports, investment and employment. The results...

The forecasting of government revenues is extremely important for an adequate budget execution, since a good accuracy in the estimation allows the stipulation of an expenditure level that meets the demands of the population. Using data released by the National Council of Treasury Policy, the...

The international capital flows are intensifying due to the deepening of globalization and diversification of portfolios in international capital markets. These factors have contributed to the increased integration of international financial markets. A VAR model is carried out to analyze how a...

The international capital flows are intensifying due to the deepening of globalization and diversification of portfolios in international capital markets. These factors have contributed to the increased integration of international financial markets. A VAR model is carried out to analyze how a...

This paper aims to compare two different methodologies to estimate exchange rate misalignment. The first methodology consists in using multivariate time series techniques and a model with domestic variables. The second methodology consists in Pesaran's Global Vector Error Correction Model with...

This article presents a linear econometric model with variable coefficients for the analysis of the quarterly dynamics of the Brazilian gross tax burden in the 1995-2008 years.The choice of this particular model was motivated by the constant changes made in the Brazilian tax system during these...