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E.T.A.M. Enquête sur les trajectoires, aspirations et migrations
Last registered on July 11, 2019


Trial Information
General Information
E.T.A.M. Enquête sur les trajectoires, aspirations et migrations
Initial registration date
July 08, 2019
Last updated
July 11, 2019 1:07 PM EDT
Primary Investigator
Other Primary Investigator(s)
PI Affiliation
Additional Trial Information
On going
Start date
End date
Secondary IDs
The objective of the study is to understand how intentions to migrate articulate with aspirations of young men in a rural district in Mali. A randomized controlled trial is attached to a wider survey on aspirations and migration which was submitted to young men aged 18 to 35. The survey will serve to link migration intentions to general and labor market aspirations, and the specific intervention, based on documentaries showing role models from the surveyed individuals' district. The intervention is intended to examine to what extent the diffusion of positive/ negative life stories surrounding migration and the local labor market affects individuals aspirations and intentions to migrate.

External Link(s)
Registration Citation
Mesplé-Somps, Sandrine and Björn Nilsson. 2019. "E.T.A.M. Enquête sur les trajectoires, aspirations et migrations." AEA RCT Registry. July 11. https://doi.org/10.1257/rct.4423-1.0.
Former Citation
Mesplé-Somps, Sandrine , Björn Nilsson and Björn Nilsson. 2019. "E.T.A.M. Enquête sur les trajectoires, aspirations et migrations." AEA RCT Registry. July 11. http://www.socialscienceregistry.org/trials/4423/history/49841.
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Experimental Details
The intervention consists in the screening of a single 20 minutes long film at the village level. All baseline interviewees were asked (but not reauired) to assist in the screening. In total, four different films were screened, each in 50 different villages. One films portrays two past migrants, who had come back from Ghana and Libya and who succesfully started businesses employing local youth. Another one showed a past migrant who had come back from Libya injured and unable to work. The third film portrays local entrepreneurs who succesfully started and grew local businesses without migration. The last film (placebo) is a Malian comedy about a man being pursued by a sorceress who wants to marry him.

Films were screened in the villages using portable projectors connected to a computer, and the projection was done on a white sheet.
Intervention Start Date
Intervention End Date
Primary Outcomes
Primary Outcomes (end points)
Intentions to migrate, destination of intented migration, willingness to change labor market status.
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Mental health, subjective poverty, actual migration (funds for a third survey wave permitting).
Secondary Outcomes (explanation)
Mental health is captured through a module specifically designed to capture depression prevalence, and which has been tested (among other locations) in Burkina Faso by researchers from INED and INSERM.
Experimental Design
Experimental Design
Randomization was stratified according to the share of households in each village with past and current migrants, the average education level of surveyed individuals in the household, and the average number of unemployed individuals surveyed.

Treatments were allocated randomly within strata, and each village had one film screened during February/March 2019.

Experimental Design Details
Randomization Method
Randomization done in office by a computer (using Stata version 14).
Randomization Unit
The randomization was done at the village level.
Was the treatment clustered?
Experiment Characteristics
Sample size: planned number of clusters
200 villages.
Sample size: planned number of observations
2000 observations.
Sample size (or number of clusters) by treatment arms
50 villages control, 50 villages for each of the three treatments (documentaries).
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB Name
Institutional Review Board - Paris School of Economics
IRB Approval Date
IRB Approval Number
2018 015
Post Trial Information
Study Withdrawal
Is the intervention completed?
Is data collection complete?
Data Publication
Data Publication
Is public data available?
Program Files
Program Files
Reports, Papers & Other Materials
Relevant Paper(s)