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Relacionamento de preços no mercado nordestino de tomate AgEcon
Mayorga, Rodrigo de Oliveira; Tabosa, Francisco Jose Silva; Mayorga, Ruben Dario; Lima, Patricia Veronica Pinheiro Sales.
The objective this paper is to analyze the relationships in the prices on the tomatoes wholesale market prices of Fortaleza (CE), Ibiapaba (CE), Recife (PE) e Salvador (BA). Time series methods were used: unit root test, Johansen co-integration test, VAR models, and variance decomposition of prediction error and impulse response function. The results showed that the prices of Fortaleza influencies the wholesale market of Ibiapaba (CE), Recife (PE) e Salvador (BA).
Tipo: Journal Article Palavras-chave: Wholesale market; Price transmission; VAR model; Tomatoes; Demand and Price Analysis.
Ano: 2009 URL: http://purl.umn.edu/53848
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Nível tecnológico e balanço econômico de produção de mamona para obtenção do biodiesel no estado do Ceará AgEcon
Khan, Ahmad Saeed; Braga, Francisco Laercio Pereira; Mayorga, Ruben Dario.
In order to determine technological level and economic balance of castor seed prodution (Ricinus communis) in the State of Ceará, one of the main producers of oil seed of Northeast of Brazil, the present research was coducted to verify economic feasibility and technological level of castor seed production for obtaining biodiesel. The data were collected in Boa Viagem, Tauá and Pedra Branca municipalities. For profit analysis, income and production cost per hectare of castor seed production in selected municipalities were considered. It was observed that on the average, 12,91% of the interviewed farmers are using more than 80% of the recommended techniques. The castor seed production in all the three selected municipalities is economically feasifble...
Tipo: Journal Article Palavras-chave: Castor seed; Technological level; Biodiesel; Economic feasibility; Ceará; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008 URL: http://purl.umn.edu/54080
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