Correlação e causalidade entre os preços de commodities e energia

This paper aims to test and analyze the integration and causality of energy and agricultural commodity prices in the Brazilian context. In order to do that, econometric tests of time series analysis using monthly data, from 2000 to 2012, of the prices of crude oil, ethanol, sugar cane, corn, soybeans and the exchange rate were used. The results show that the prices of petroleum and the exchange rate are the elements most integrated into agricultural prices. The ethanol price is integrated into sugar cane, soybeans and corn prices. Furthermore, soybean prices are also integrated into sugar cane, ethanol and corn, showing that there is a complex and coordinated price mechanism in these markets in Brazil. On the other hand, the Brazilian prices (ethanol, corn and soybean) are caused, in the sense of Granger, by their American counterparts making the Brazilian commodity price formation even more complex.

[1]  C. Granger.  Investigating causal relations by econometric models and cross-spectral methods , 1969 .

[2]  A. Libera.  INTEGRAÇÃO ENTRE OS MERCADOS DE MILHO E SOJA: UMA ANÁLISE ATRAVÉS DA TRANSMISSÃO DE PREÇOS , 2009 .

[3]  Luanne Lohr,et al.  Ethanol, Corn, and Soybean Price Relations in a Volatile Vehicle-Fuels Market , 2009 .

[4]  W. Enders.  Applied Econometric Time Series , 1994 .

[5]  Robert E. Evenson,et al.  Handbook of Agricultural Economics , 2002 .

[6]  Airton Lopes Amorim,et al.  Integração e transmissão de preços entre os mercados de trigo argentino e internacional , 2010 .

[7]  Carlos Eduardo Caldarelli,et al.  Fatores de influência no preço do milho no Brasil , 2012 .

[8]  Cindy L. Yu,et al.  Speculation and volatility spillover in the crude oil and agricultural commodity markets: A Bayesian analysis , 2011 .

[9]  Débora Fernandes Bellinghini.  Análise de volatilidade spillover entre commodities agrícolas e o mercado de energia: um estudo do mercado de etanol brasileiro , 2012 .

[10]  S. Saghaian,et al.  The Impact of the Oil Sector on Commodity Prices: Correlation or Causation? , 2010, Journal of Agricultural and Applied Economics.

[11]  R. Chand,et al.  The global food crisis: causes, severity and outlook. , 2008 .

[12]  P. Phillips.  Testing for a Unit Root in Time Series Regression , 1988 .

[13]  Ashok Gulati,et al.  High food prices: the what, who, and how of proposed policy actions. , 2008 .

[14]  D. Mitchell.  A Note on Rising Food Prices , 2008 .

[15]  W. Tyner.  The integration of energy and agricultural markets , 2010 .

[16]  S. Johansen,et al.  Testing structural hypotheses in a multivariate cointegration analysis of the PPP and the UIP for UK , 1992 .

[17]  CO-INTEGRAÇÃO ENTRE OS PREÇOS DA SOJA COTADOS NOS MERCADOS BRASILEIRO E NORTE-AMERICANO: UMA ANÁLISE EMPÍRICA , 2003 .

[18]  W. Tyner,et al.  Ethanol Policy Analysis - What Have We Learned So Far? , 2008 .

[19]  Daniel Arruda Coronel,et al.  Análise da transmissão de preços no setor sucroalcooleiro brasileiro , 2012 .

[20]  Ardian Harri.  Mean and Variance Dynamics between Agricultural Commodity Prices and Crude Oil Prices , 2009 .

[21]  Darrel Good,et al.  Market Instability in a New Era of Corn, Soybean, and Wheat Prices , 2009 .

[22]  Marc Nerlove,et al.  The Dynamics of Supply: Estimation of Farmers' Response to Price. , 1960 .

[23]  Aplicacao de testes de raiz unitaria com quebra estructural em series economicas no Brasil na decada de 90 , 2001 .

[24]  Barry K. Goodwin,et al.  Spatial price analysis , 2001 .

[25]  David Zilberman,et al.  Price volatility in ethanol markets , 2011 .

[26]  A. C. Campos,et al.  Efeitos de acordos comerciais sobre a integração de preços do algodão nos mercados interno e externo , 2015 .

[27]  J. Baffes.  Oil Spills on Other Commodities , 2007 .

[28]  S. Johansen.  STATISTICAL ANALYSIS OF COINTEGRATION VECTORS , 1988 .

[29]  W. Fuller,et al.  LIKELIHOOD RATIO STATISTICS FOR AUTOREGRESSIVE TIME SERIES WITH A UNIT ROOT , 1981 .

[30]  G. González-Rivera,et al.  The Extent, Pattern, and Degree of Market Integration: A Multivariate Approach for the Brazilian Rice Market , 2001 .