An online survey experiment on farmer's subjective belief on environmentally friendly farming

Last registered on February 14, 2024
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Pre-Trial

Trial Information

General Information

Title
An online survey experiment on farmer's subjective belief on environmentally friendly farming
RCT ID
AEARCTR-0012972
Initial registration date
February 08, 2024

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
February 14, 2024, 12:04 PM EST

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

Locations

Country
Japan
Region

Primary Investigator

Name
Ryosuke Inoue
Affiliation
Mitsubishi UFJ Research and Consulting Co., Ltd.
Contact Primary Investigator

Other Primary Investigator(s)

Additional Trial Information

Status
Completed
Start date
2024-02-09
End date
2024-02-13
Keywords
Agriculture, Behavior, Environment & Energy
Additional Keywords
Subjective belief
JEL code(s)
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
We conduct an online survey experiment. to investigate the effect of information provision on farmer's belief in income change when she converted to environmentally friendly farming. Our information treatment includes the income change of farmers who have already converted to environmentally friendly farming.
External Link(s)

Registration Citation

Citation
Inoue, Ryosuke. 2024. "An online survey experiment on farmer's subjective belief on environmentally friendly farming." AEA RCT Registry. February 14. https://doi.org/10.1257/rct.12972-1.0
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
We will provide information on the income change of farmers who have already converted to environmentally friendly farming to encourage farmer's to update their belief on income change when she converted.
Intervention Start Date
2024-02-09
Intervention End Date
2024-02-13

Primary Outcomes

Primary Outcomes (end points)
Farmers' subjective belief in income change (mean and variance)
Primary Outcomes (explanation)
Subjective probabilities in income change are asked in the survey and its mean and variances are estimated from the answer.

Secondary Outcomes

Secondary Outcomes (end points)
Farmers choice on environmentally friendly farming collected from a discrete choice experiment
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
Japanese farmers are randomized into three groups. We randomize the treatments at the individual level.
The main outcome is subjective belief in income change when converted from conventional to environmentally friendly farming. We will ask the subjective belief before and after the treatment (pre-post design).
Experimental Design Details
The control group (C) receives a qualitative information of income change when she would convert to environmentally friendly farming.
The first treatment group (T1) receives the information of average income change of farmers who have already converted to environmentally friendly farming.
The second treatment group (T2) receives the information of distribution of income change (T2).
Randomization Method
Randomization done in office by a computer.
Randomization Unit
We randomize at the individual level.
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
No clustering
Sample size: planned number of observations
600 individual rice farmers enrolled in the survey company
Sample size (or number of clusters) by treatment arms
Control: 200 individual farmers
Treatment 1: 200 individual farmers
Treatment 2: 200 individual farmers
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
IRB Approval Date
IRB Approval Number
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