Quality Certification, Beliefs, and Adoption

Last registered on January 19, 2024
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Pre-Trial

Trial Information

General Information

Title
Quality Certification, Beliefs, and Adoption
RCT ID
AEARCTR-0012414
Initial registration date
November 01, 2023

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 19, 2024, 1:56 PM EST

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

Locations

Country
Tanzania, United Republic of
Region
Morogoro

Primary Investigator

Name
Salvatore Di Falco
Affiliation
University of Geneva
Contact Primary Investigator

Other Primary Investigator(s)

Additional Trial Information

Status
On going
Start date
2023-03-01
End date
2024-02-29
Keywords
Agriculture, Behavior, Welfare
Additional Keywords
Maize seeds, adoption, beliefs, Tanzania
JEL code(s)
O1
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
We test for the role of quality certification on input choice. To this end we elicit the willigness to pay (WTP) for a bag of maize seeds in the presence and in the absence of a quality certification stamp on the seeds bag. Beliefs about seeds performance are also elicited at difference stages of the maize production cycle. Both beliefs and WTP elicitation are incentive compatible. Heterogeneous treatment effect (with respect to baseline farmer and farm characteristics) will be explored. The RCT will entails a baseline, a midline and an endline.
External Link(s)

Registration Citation

Citation
Di Falco, Salvatore. 2024. "Quality Certification, Beliefs, and Adoption ." AEA RCT Registry. January 19. https://doi.org/10.1257/rct.12414-1.0
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
We elicit WTP via Take it or Leave or BDM methods. We also elicit incentive compatible beliefs. Both elicitations are undertaken at the baseline and the midline. The treatement is a quality certification logo that appears on the seeds bag in the treatment group and not in the control group.
Intervention Start Date
2023-03-15
Intervention End Date
2023-11-30

Primary Outcomes

Primary Outcomes (end points)
harvest of maize, probability of buying quality certified seeds, labor and other inputs use.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
2x2 experimental design. Certified/non Certified and WTP elicitation method (BDM or Take it or Leave it).
Experimental Design Details
2x2 experimental design. Certified/non Certified and WTP elicitation method (BDM or Take it or Leave it).
Randomization Method
Randomization done in office by a computer
Randomization Unit
Households
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
1000
Sample size: planned number of observations
1000
Sample size (or number of clusters) by treatment arms
250 x 4
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
University of Geneva IRB
IRB Approval Date
2023-03-02
IRB Approval Number
CUREG2021-01-05
Analysis Plan

Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
No
Data Collection Complete
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials