Cost and stakes of coordination: evidence from an experiment in Senegal

Last registered on June 27, 2022


Trial Information

General Information

Cost and stakes of coordination: evidence from an experiment in Senegal
Initial registration date
January 12, 2022

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
January 12, 2022, 7:39 PM EST

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Last updated
June 27, 2022, 4:49 PM EDT

Last updated is the most recent time when changes to the trial's registration were published.



Primary Investigator

University of Chicago

Other Primary Investigator(s)

PI Affiliation
University of Bordeaux
PI Affiliation
PI Affiliation
University of Paris Dauphine

Additional Trial Information

On going
Start date
End date
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
One key barrier to unlocking higher-value markets for farmers investing in quality upgrading is quality certification. Provision of certification services at a local level before aggregation may be important to overcome the information asymmetry on quality between farmers and downstream buyers and unlock price premiums for farmers. However, quality testing is costly in many contexts and could eat up a substantial portion of the available premium. Coordination among farmers to jointly test their production could significantly reduce costs of quality assessment. Coordination is also risky and requires trust between farmers that everyone involved has invested in quality. This project aims to test whether farmers are aware of the quality investments made by other nearby farmers, and whether the provision of third-party information about the quality investments of nearby farmers encourages coordination.
External Link(s)

Registration Citation

Abate, Gashaw et al. 2022. "Cost and stakes of coordination: evidence from an experiment in Senegal." AEA RCT Registry. June 27.
Experimental Details


Intervention Start Date
Intervention End Date

Primary Outcomes

Primary Outcomes (end points)
Take-up of quality certification; coordination for quality certification; output sales decisions
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
Producers are randomly assigned to receive quality certification discounts and information to facilitate coordination. We cross-randomize these two components, stratified at rural commune level, and randomly pair farmers such that two farmers in the information treatment arms receive information about each other.
Experimental Design Details
Not available
Randomization Method
Randomization done in office by a computer
Randomization Unit
Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters
About 480 farmers
Sample size: planned number of observations
About 480 farmers
Sample size (or number of clusters) by treatment arms
80 control, 80 discount only, 160 information only, 160 information + discount
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)

Institutional Review Boards (IRBs)

IRB Name
IRB Approval Date
IRB Approval Number
Analysis Plan

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