A survey experimental study for stimulating individual action to combat climate change

Last registered on October 25, 2021

Pre-Trial

Trial Information

General Information

Title
A survey experimental study for stimulating individual action to combat climate change
RCT ID
AEARCTR-0008366
Initial registration date
October 12, 2021
Last updated
October 25, 2021, 8:46 PM EDT

Locations

Region

Primary Investigator

Affiliation
Seoul National University

Other Primary Investigator(s)

PI Affiliation
Seoul National University
PI Affiliation
Seoul National University
PI Affiliation
Seoul National University
PI Affiliation
Seoul National University

Additional Trial Information

Status
Completed
Start date
2021-10-12
End date
2021-10-22
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
We design an experiment to examine what kind of information can increase the acceptance of electricity tariffs that internalize the environmental cost of power generation and promote the expansion of renewable energy. We adopt four psychological and behavioral insights frequently dealt with in energy and environment-related literature. These are (i) political polarization (ii) internal locus of control (iii) social norm and (iv) external cost of energy use. Respondents are randomly assigned into one of the five groups: one control and four treatment groups, each with a sample size of 900. A control group is given no information, while each treatment group receives the following information: (i) the persistency of climate change policy in South Korea regardless of partisanship of past and present governments; (ii) the outcome of Montreal protocol, which mitigates the ozone depletion problem through international cooperation; (iii) efforts currently made by major Greenhouse gas emitting countries in the world as well as South Korea’s effort; (iv) the amount of total environmental cost arising from electricity generation and the actual amount of environmental cost that is currently being paid by electricity consumers. After receiving information, respondents are asked to express (i) their willingness-to-pay for environmental costs included in their electricity bill, (ii) their support for the green pricing program, and (iii) their preferred portion of renewable energy in the energy mix for power generation in 2050.
External Link(s)

Registration Citation

Citation
Choi, Syngjoo et al. 2021. " A survey experimental study for stimulating individual action to combat climate change." AEA RCT Registry. October 25. https://doi.org/10.1257/rct.8366-1.1
Sponsors & Partners

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Experimental Details

Interventions

Intervention(s)
We design the experiment to examine what kind of information can increase the acceptance of electricity tariffs that internalize the environmental cost of power generation and promote the expansion of renewable energy. We adopt four psychological and behavioral insights frequently dealt with in energy and environment-related literature. These are (i) political polarization (ii) internal locus of control (iii) social norm and (iv) external cost of energy use.
Intervention Start Date
2021-10-12
Intervention End Date
2021-10-22

Primary Outcomes

Primary Outcomes (end points)
After receiving information, respondents are asked to express (i) their willingness-to-pay for environmental costs included in their electricity bill, (ii) their support for the green pricing program, and (iii) their preferred portion of renewable energy in the energy mix for power generation in 2050.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Opinions and behavioral intention on environment-related issues (5 points Likert Scale)
Degree of social norm, internal locus of control (5 points Likert Scale)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
Respondents are randomly assigned into one of the five groups: one control and four treatment groups, each with a sample size of 900. A control group is given no information, while each treatment group receives the following information: (i) the persistency of climate change policy in South Korea regardless of partisanship of past and present governments; (ii) the outcome of Montreal protocol, which mitigates the ozone depletion problem through international cooperation; (iii) efforts currently made by major Greenhouse gas emitting countries in the world as well as South Korea’s effort; (iv) the amount of total environmental cost arising from electricity generation and the actual amount of environmental cost that is currently being paid by electricity consumers.
Experimental Design Details
Respondents are randomly assigned into one of the five groups: one control and four treatment groups, each with a sample size of 900. A control group is given no information, while each treatment group receives the following information: (i) the persistency of climate change policy in South Korea regardless of partisanship of past and present governments; (ii) the outcome of Montreal protocol, which mitigates the ozone depletion problem through international cooperation; (iii) efforts currently made by major Greenhouse gas emitting countries in the world as well as South Korea’s effort; (iv) the amount of total environmental cost arising from electricity generation and the actual amount of environmental cost that is currently being paid by electricity consumers.
Randomization Method
Randomization will be done in an office by a computer.
Randomization Unit
The randomization unit is individual.
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
4,500 people
Sample size: planned number of observations
4,500 people
Sample size (or number of clusters) by treatment arms
The participants will be randomly assigned to either the control group (no information provision) or one of the four treatment groups. We plan to recruit 900 people per group.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
We select a nationally representative sample of 4,500 electricity consumers aged 19 and above in South Korea. The number of samples was calculated based on a power level of 0.8 and a Cohen's d level of 0.2 under a significance level of 0.05. The minimum number of people per group to satisfy the criteria was estimated to be 400.
IRB

Institutional Review Boards (IRBs)

IRB Name
Seoul National University Institutional Review Board
IRB Approval Date
2021-09-27
IRB Approval Number
2109/003-012
Analysis Plan

Analysis Plan Documents

Pre-Analysis Plan for “A survey experimental study for stimulating individual action to combat climate change”

MD5: 328ec963fc4e91bc846ec01483074010

SHA1: 3eb3d828bb17b3799c37359742e4438170accf75

Uploaded At: October 12, 2021

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