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Study Overview

Impact evaluation of the Matam development project (PRODAM) II extension in Senegal on household income, food security and employment.
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To respond to the 2008 food crisis, the West African Development Bank (BOAD) initiated the Special Program for Food Security (SPFS) as its contribution to the implementation of the "strategy for controlling inflation and boosting agricultural production", adopted by the Council of Ministers of UEMOA. The SPFS has been implemented in eight UEMOA countries through 17 projects amongst which PRODAM II Extension in Senegal, which was designed as a consolidation and a scaling up of results obtained by PRODAM I and II. The objective of PRODAM II Extension is, in one hand, to enhance the food production capacity in response to the 2008 food crisis and in the other hand to contribute to a sustainable reduction of poverty and food insecurity through i) the intensification and diversification of agricultural production, ii) the local development of small irrigation, iii) sustainable employment creation for women and the youth and, iv) the improvement of the livestock economy and environment of the Ferlo. To achieve these objectives, PRODAM has designed and implemented sets of interventions for each agro-ecological zone.

Registration Citation:

Diaw, A. and Diagne, A., 2017. Impact evaluation of the Matam development project (PRODAM) II extension in Senegal on household income, food security and employment. Registry for International Development for Impact Evaluations (RIDIE). Available at: 10.23846/ridie128

Agriculture and Rural Development
Additional Keywords:
Agricultural, Land, irrigation, credit, pastoral space, institutional rehabilitation, governance
Secondary ID Number(s):

Principal Investigator(s)

Name of First PI:
Pr Adama Diaw
Gaston Berger University
Name of Second PI:
Dr Aliou Diagne
Gaston Berger University

Study Sponsor

Study Sponsor Location:

Research Partner

Name of Partner Institution:
Gaston Berger University
Type of Organization:
Research institute/University

Intervention Overview


The Agricultural Development Project in Matam (PRODAM) intervenes in the three agro ecological zones in Matam region. In the Walo, PRODAM II Extension firstly conducted the institutional rehabilitation of farmers' organizations (POs), most of which were in debt and had no access to credit at the National Agricultural Credit Fund of Senegal (CNCAS). PRODAM played the intermediation role between the OPs and the bank. A 3-year moratorium has been granted by CNCAS. For each group debt, the due amount was divided amongst the Members for payment. In the Diéri, the Companies Intensification of Agricultural Production (SIPA) were introduced as the Major Institutional innovation. Thus, to this day the project has facilitated the establishment of 9 SIPA which are all operational in the field of production and marketing of garden produce. In the Ferlo where extensive farming is the main activity the pastoral units (UP), based on the exploitation of natural resources, were introduced as institutional innovations. Thus, to ensure and fully engage pastoral communities in the management and exploitation of natural resources in pastoral units, the PRODAM had developed by common agreement.

Theory of Change:
Multiple Treatment Arms Evaluated?

Implementing Agency

Name of Organization:
Agricultural Development Project in Matam
Type of Organization:
Public Sector, e.g. Government Agency or Ministry

Program Funder

Name of Organization:
Type of Organization:
Research Institution/University

Intervention Timing

Intervention or Program Started at time of Registration?
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Evaluation Method

Evaluation Method Overview

Primary (or First) Evaluation Method:
Instrumental variables
Other (not Listed) Method:
Additional Evaluation Method (If Any):
Other (specify)
Other (not Listed) Method:
qualitative analysis using anthropological and sociological methodologies (Analytical narratives or Process tracking). The data for this qualitative analysis will collected through ‘‘focus groups’’

Method Details

Details of Evaluation Approach:

In coherence with our theory of change, we take “selection on unobservables” to be the natural assumption to make and to use instruments to identify the local average treatment effect (LATE), which measures the mean impact on the subpopulation induced to change their behavior by the selected instruments. This is the “Quasi-experimental (instrumental variables)” identification strategy in the classification below. More precisely, we will use the Local Instrumental Variable (LIV) approach (Heckman and Vytlacil, 2007b) to identify LATE and other related impact parameters that are relevant in answering the PSSA projects’ formulated impact evaluation questions. These parameters include, in particular, the average surplus parameters, which is a willingness to pay measure of welfare change when the welfare outcome is measured in monetary terms (Heckman, 2010).

Outcomes (Endpoints):

Incomes (agricultural and nonagricultural), food security, Employment, efficiency of their governance and their long term viability

Unit of Analysis:

Our hypothesis is that a participation in PRODAM led to increased household production, incomes and food security

Unit of Intervention or Assignment:
In the walo village level, UP level in the Ferlo and Individuals in the Dieri
Number of Clusters in Sample:
96 Villages
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Supplementary Files

Analysis Plan:
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Outcomes Data

Data will be collected from samples from the three target populations for PRODAM which are defined by the three agro-ecological zones (Walo, Dieri and Ferlo). A multistage cluster random sampling procedure with village as cluster is used separately in each zone in order to ensure that for each AE zone the sample size will be adequate to detect with sufficient statistical power the impact of interventions that are specific to that AE zone.
Data Already Collected?
Data Previously Used?
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Treatment Assignment Data

Participation or Assignment Information:
Data Obtained by the Study Researchers?
Data Previously Used?
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Data Obtained by the Study Researchers?
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Data Analysis

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Study Materials

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Registration Category

Registration Category:
Prospective, Category 1: Data for measuring impacts have not been collected

Completion Overview

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Unit of Analysis:
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Preliminary Report:
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Data Availability

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Other Materials

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Description of Changes:

Study Stopped