Aymen Frija

We investigate the factors that affect total factor productivity growth in MENA countries. To this end, we start first by examining levels and trends in agricultural outputs and productivity growth using Torqnovist Indexes and then computing...

Soil and water conservation technologies (SWCT) are important to farmers, to the research community, as well as to the policy makers, given that declining soil health, and increasing erosion and moisture stress have implications for agricultural...

n this study, we analyzed a representative sample of sheep farms (n = 1021) using Principal Component Analysis (PCA) and multivariate K-Mean classification, to characterize the production and feeding systems across Tunisia. We also identified and...

Collaboration between actors is an important determinant of water governance, particularly in developing countries suffering from lack of institutional and organizational performances for water management. The objective of this paper is to use the...

The aim of this paper is to examine the impact of research, development extension (RD&E) and climate change (measured in terms of change in rainfall) on the productivity growth of agriculture in Tunisia during the period 1970-2011, using output-based...

The objective of this paper is to identify farmers’ strategies to adapt to groundwater shortage in vulnerable arid areas of south Tunisia.
In the selected area, the potential of rainfed agriculture is very limited and groundwater is the only source...

L’objectif de cet article est d’analyser l’efficacité technique et d’usage de l’eau d’irrigation dans le périmètre irrigué Jijel-Taher dans l’Est de l’Algérie, ainsi que l’effet de différents niveaux de quotas d’eau sur l’amélioration de ces...

En Afrique du Nord, de nombreux aquifères sont surexploités, principalement du fait d’une agriculture irriguée intensive. Cependant, les politiques publiques qui ont cherché à réguler cet usage se sont montrées jusqu’à maintenant peu efficaces, du...

Conservation Agriculture (CA) have a large potential for enhancing cereal yields in the semi-arid areas through
better management of soil moisture. The objective of the current paper is to quantify, at national level, the impact
of CA adoption in...

The main objectives of the current study are to quantify the Total Factor Productivity (TFP) growth of durum wheat sector in Tunisia and to identify its main determinants. The Malmquist index approach was applied for the calculation of TFP growth...

The main objectives of this study are to evaluate the impact of irrigation water use efficiency improvement on enhancing the value of water used for irrigation; and to estimate the potential for private water cost reductions in irrigated durum wheat...

Around 27% of aquifers in Tunisia are being overexploited. Groundwater extractions is mainly for the irrigation sector, where more than 40% of the water used for irrigation comes from GW sources. The objective of this study is to critically review...

This research aims to assess the Total Factor Productivity (TFP) of the whole agricultural sector in Egypt for the period 1961-2012 using Törnqvist index calculations. Particularly, it aims to investigate: (1) the most important factors explaining...

Malgre´ les efforts de la recherche et les multiples interventions desE´ tats, la productivite´ des
ressources en eau, terre et capital, reste souvent limite´e, notamment en Tunisie. Cette e´tude
pre´sente un cadre d’analyse des performances des...

The objective of this paper is to calculate the total factors productivity (TFP) growth of the Tunisian agricultural sector, between 1961 and 2012, and to assess its main determinants. Data about agricultural inputs and outputs was collected for the...

The objectives of this study are twofold. Firstly, we aim to measure the technical,
scale and economic efficiencies for a sample of 170 cereal farmers in Chebika region
(Central Tunisia) using Data Envelopment Analysis (DEA) method. Secondly,
compute...

A comprehensive assessment of the Tunisian agricultural potential, production, natural resources
management and policies has been presented using SWOT (strengths, weaknesses, opportunities and threats)
analysis. Concerning the strengths of the...