An online survey experiment on the social discount rate

Last registered on May 21, 2024
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Pre-Trial

Trial Information

General Information

Title
An online survey experiment on the social discount rate
RCT ID
AEARCTR-0013650
Initial registration date
May 19, 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
May 21, 2024, 11:35 AM EDT

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

Locations

Country
Japan
Region

Primary Investigator

Name
Rintaro Yamaguchi
Affiliation
National Institute for Environmental Studies (NIES)
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Other Primary Investigator(s)

PI Name
Kayo Murakami
PI Affiliation
Kwansei Gakuin University
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PI Name
Hiroaki Sakamoto
PI Affiliation
Kobe University
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Additional Trial Information

Status
In development
Start date
2024-05-21
End date
2024-05-24
Keywords
Environment & Energy, Welfare
Additional Keywords
Discount rate
JEL code(s)
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
To study intergenerational discounting, we perform an online survey in which the respondent is asked to answer how much the respondent is willing to pay USD100 to receive an amount in near and distant future. The subjects will be randomly assigned to the control and the treatment, in the latter of which a piece of information on climate change is provided.

External Link(s)

Registration Citation

Citation
Murakami, Kayo, Hiroaki Sakamoto and Rintaro Yamaguchi. 2024. "An online survey experiment on the social discount rate." AEA RCT Registry. May 21. https://doi.org/10.1257/rct.13650-1.0
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2024-05-21
Intervention End Date
2024-05-24

Primary Outcomes

Primary Outcomes (end points)
Mean and median discount rates and their components
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
To study intergenerational discounting, we perform an online survey in which the respondent is asked to answer how much the respondent is willing to pay USD100 to receive an amount in near and distant future. The subjects will be randomly assigned to the control and two treatments. The first treatment provides information on climate change. The second treatment asks private discount rates.
Experimental Design Details
Randomization Method
The randomization is done by an online survey company using their survey software.
Randomization Unit
individuals
Was the treatment clustered?
Yes

Experiment Characteristics

Sample size: planned number of clusters
12,000 individuals.
Sample size: planned number of observations
12,000 individuals.
Sample size (or number of clusters) by treatment arms
4,000 individuals control, 4,000 individuals treatment with climate change information, and 4,000 individuals treatment with private discount rates
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
Kyoto University Global Survivability Studies Experiment Review Board
IRB Approval Date
2024-02-15
IRB Approval Number
202403
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