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Nudging French farmers to adopt the new eco-schemes in the future European Common Agricultural Policy (CAP)
Last registered on January 22, 2021

Pre-Trial

Trial Information
General Information
Title
Nudging French farmers to adopt the new eco-schemes in the future European Common Agricultural Policy (CAP)
RCT ID
AEARCTR-0007020
Initial registration date
January 22, 2021
Last updated
January 22, 2021 9:32 AM EST
Location(s)

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Primary Investigator
Affiliation
Toulouse School of Economics
Other Primary Investigator(s)
PI Affiliation
GAEL
Additional Trial Information
Status
In development
Start date
2021-01-28
End date
2021-06-28
Secondary IDs
Abstract
The study focuses on adoption of eco-schemes (ES) by French farmers. Eco-schemes are new payment schemes for care for the environment and climate which are funded by the European Common Agricultural Policy. Each Member State must propose one or more ES, and farmers have the freedom to participate or not. Here, we propose behavioral interventions aiming at increasing adoption of ES by French farmers. It has been shown that farmers’ decisions to adopt sustainable practices seem to be influenced by their neighbors’ behavior. Our strategy to encourage farmers to adopt ES is then to make more salient social norms of adoption among farmers. To this end we implement a large-scale web survey where French farmers are proposed to adopt two different hypothetical ES: one aiming at compensating farmers who voluntarily dedicate a part of their land to protect biodiversity, and one aiming at compensating farmers who voluntarily reduce the use of crop protection products. Farmers will be randomly assigned to four different informational treatments in which we will vary the reference to the social norm in terms of farmer adoption.
External Link(s)
Registration Citation
Citation
Ouvrard, Benjamin and Arnaud REYNAUD. 2021. "Nudging French farmers to adopt the new eco-schemes in the future European Common Agricultural Policy (CAP)." AEA RCT Registry. January 22. https://doi.org/10.1257/rct.7020-1.0.
Sponsors & Partners
Sponsor(s)
Experimental Details
Interventions
Intervention(s)
Farmers are presented two hypothetcal ES and they are asked to tell if they would adopt them.
We provide different types of information regarding adoption of ES by peer farmers, expecting to measure an impact on their own decision to adopt.
Intervention Start Date
2021-01-28
Intervention End Date
2021-02-28
Primary Outcomes
Primary Outcomes (end points)
Willingness-to-accept to implement the new eco-schemes
Subsidy requested by a farmer to adopt an eco-scheme
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Farmers’ beliefs on the eco-schemes efficiency at the society level, at the region level and for the environment (3 beliefs elicited per eco-scheme)
Farmers’ beliefs on what the other farmers in the same region think about the eco-schemes efficiency at the society level, at the region level and for the environment (3 beliefs elicited per eco-scheme)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
We rely on an online survey implemented using the web-platform LimeSurvey (version 2.5). Thanks to a French pool company in charge of sending invitation emails to farmers, we have access to a listing of 90,000 French farmers located in France. We implement the survey in two waves. The survey in the wave 1 does not include any kind of behavioral intervention. Farmers are proposed two different eco-schemes, and they are asked if under which financial conditions they would adopt them. They also are asked to provide if they believe that these eco-schemes may generate benefits for the society, farmers in their region and for the environment.
The results obtained from wave 1 will be used to define our four informational treatments in wave 2.
Experimental Design Details
Not available
Randomization Method
Randomization done by the web-survey platfeorm (computer)
Randomization Unit
individual (farmer)
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
Individual observations (no clusters)
Sample size: planned number of observations
Between 1,800 and 3,600 depending upon the response rate to the survey
Sample size (or number of clusters) by treatment arms
Between 450 and 900
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Individual Random Assignment (IRA) Designs—Completely Randomized Controlled Trials MDES=0,118
Supporting Documents and Materials

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IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
IRB Approval Date
IRB Approval Number