Araujo, Jose Geraldo Fernandes de (author), Machado-Filho, Francisco (author), Ribon, Miguel (author), Rocha, Dilson Seabra (author), and Theibaut, Jose Tarcisio Lima (author)
Format:
Journal article
Language:
Portuguese with English summary
Publication Date:
1982
Published:
Brazil: Vicosa, Brazil : Universidade Federal de Vicosa.
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 87 Document Number: C05857
7 pages, This study aims to identify whether there is dependence between agricultural commodities traded on the Brazilian market. We used the bivariate copula method over a ten-year period to assess the extreme effects on the returns of the following commodities: soybean, wheat, Arabica coffee, and Robusta coffee. The relationship directly affects the dependence between Arabica and Robusta coffees commodities. While the relationship between wheat, Arabica and Robusta coffees, and soybean is positively dependent. Economic growth, market dynamics, and the prices of an agricultural commodity tend to increase the price of other commodities.
Kumpu, Ville (author) and Kunelius, Risto (author)
Format:
Book chapter
Publication Date:
2012
Published:
International: Nordicom, Goteborg, Sweden.
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: D06848
Notes:
Pages 313-330 in Elisabeth Eide and Risto Kunelius (eds.), Media meets climate: the global challenge for journalism. Nordicom, Goteborg, Sweden. 340 pages.
25 pages, Online journal article, Existen diferentes modelos para pensar la extensión rural. Con el fin de indagar las concepciones de extensión rural de los extensionistas que trabajan en diez diferentes países latinoamericanos se realizó una encuesta. La muestra fue no probabilística incidental (n=589). Se observa predominio de una concepción transferencista de la extensión rural en el promedio de las 10 muestras, con importantes diferencias entre países. La muestra uruguaya posee una orientación dialógica. No se observa presencia de concepciones asociadas al desarrollo local/territorial o a la noción de sistemas de innovación. Se recomienda implementar acciones para definir de manera crítica y consciente los modelos de extensión rural que se desea implementar.
