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| Weydmann, Celso Leonardo; Seabra, Fernando. |
| Changes in the pork chain bring about the discussion whether the wholesale sector has the leadership of price transmission and also if prices are efficient market indicators. The paper aims to identify what segment is the price leader in the pork chain and also to characterize the price volatility considering producer, wholesale and retail prices for the state of São Paulo between 1995 and 2005. The data analysis was conducted by estimating a VAR model which included an ARCH process for measuring price volatility. A Granger causality test was also implemented to check the price direction transmission. The results pointed out that price transmission occurs from wholesale to producer sectors and also that the price conditional variance for the wholesale... |
| Tipo: Journal Article |
Palavras-chave: Price transmission; Pork chain; Volatility; Demand and Price Analysis. |
| Ano: 2006 |
URL: http://purl.umn.edu/55182 |
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| Dantas, Fabiano; Weydmann, Celso Leonardo. |
| Brazil is the largest exporter and third largest producer in the chicken meat market. Consequently, it is important to know the relationship between domestic and export prices. Through the Granger causation method and the cointegrating method of Engle and Granger and the Johansen one, this study aims to verify the hypothesis of long-term relationship between both domestic and export prices of chicken meat. The results indicate that prices are cointegrated. The conclusion is that the prices received by the Brazilian producers are possibly sensible to the behavior of world market prices, and therefore they should worried about internal factors which may enlarge differences between both prices. |
| Tipo: Journal Article |
Palavras-chave: Chicken meat; Cointegrating; Internal prices; External prices; Demand and Price Analysis. |
| Ano: 2009 |
URL: http://purl.umn.edu/53846 |
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