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| Laajimi, Abderraouf; Ben Nasr, J.; Guesmi, Anis. |
| This research has been carried out to study the sustainability of the Tunisian olive-growing farms and to compare the sustainability level of organic with conventional farms. A survey was conducted with 62 olive growers in the region of Sfax in Tunisia. First, a diagnosis of the situation of the farms was undertaken comparing between organic and conventional farms. Second, an empirical analysis was achieved to asses the sustainability of organic farms versus conventional farms following the French “IDEA” method developed by Vilain [1] 1. The “IDEA” indicators showed a greater ranking for the organic farms. The analysis indicated the sustainability of organic farming on the three scales adopted; ecological scale, through the soil fertility and reduction of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Sustainability; Organic farming; Tunisia; Environmental Economics and Policy. |
| Ano: 2008 |
URL: http://purl.umn.edu/44463 |
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| Laajimi, Abderraouf; Guesmi, Anis; Mahfoudhi, A.; Dhehibi, Boubaker. |
| In Tunisia, peaches have a significant place in the fruit tree sector. Planted areas have been expanding ever since the eighties as a result of irrigation water extension and the use of better yielding varieties. These factors resulted in high production levels and fruit exports thereof. However, important seasonal and annual variation of fruit supplies continues to characterize prices at both wholesale and consumption levels. To study the response of peach production an econometric model was developed. Modelling was carried out in two stages. First area variation was explained through new plantings and removals and second yield variation was analyzed. The methodological approach followed takes into account the characteristics and... |
| Tipo: Journal Article |
Palavras-chave: Supply response; Modeling; Price expectations; Peaches; Demand and Price Analysis. |
| Ano: 2009 |
URL: http://purl.umn.edu/93801 |
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| Laajimi, Abderraouf; Guesmi, Anis; Dhehibi, Boubaker. |
| In Tunisia, the apples occupy a significant place on the sector of perennial crops. This crop covered expanded areas during the eighties following an extensive use of efficient water equipments. However, significant seasonal and annual variation of fruit supplies in the domestic market were frequently encountered affecting prices at both wholesale and consumption levels. To study the supply response of apples we carried out an econometric estimate of the model of supply response. Modelling was carried out in two stages: determination of the variation of the surfaces, on the basis of equation of news plantations and the equation of removals, and the variation of yields. The methodological approach that we followed takes account of the characteristics and... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Supply response; Modelling; Expected prices; Apples; Demand and Price Analysis. |
| Ano: 2007 |
URL: http://purl.umn.edu/9392 |
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