Additional data collection to: Quantifying the role of greenhouse gas emissions in consumption choice

Last registered on January 17, 2025

Pre-Trial

Trial Information

General Information

Title
Additional data collection to: Quantifying the role of greenhouse gas emissions in consumption choice
RCT ID
AEARCTR-0008435
Initial registration date
October 24, 2021

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
October 25, 2021, 5:34 PM EDT

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

Last updated
January 17, 2025, 3:33 PM EST

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

Locations

Region

Primary Investigator

Affiliation
University of Bonn

Other Primary Investigator(s)

Additional Trial Information

Status
Completed
Start date
2021-10-26
End date
2021-11-05
Secondary IDs
Prior work
This trial is based on or builds upon one or more prior RCTs.
Abstract
The goal of this project is to provide insights into food consumption choices in the presence of greenhouse gas emissions. This will be investigated in an experiment studying incentivized choices between different restaurant meal options. The experimental conditions vary in the information which is provided to participants at the moment of choice.
External Link(s)

Registration Citation

Citation
Schulze Tilling, Anna. 2025. "Additional data collection to: Quantifying the role of greenhouse gas emissions in consumption choice." AEA RCT Registry. January 17. https://doi.org/10.1257/rct.8435-1.2
Sponsors & Partners

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Experimental Details

Interventions

Intervention(s)
Intervention (Hidden)
This document describes additional data collection to Schulze Tilling, Anna. 2021. "Quantifying
the role of greenhouse gas emissions in consumption choice." AEA RCT Registry. June 22.
https://doi.org/10.1257/rct.7858-1.0
The original pre-registration focused on the first wave of data collection, which took place
between the 22nd of June and the 8th of July 2021. I will perform a second wave of data
collection in October and November 2021, which will be further described in the attached Pre-Analysis Plan.
The goal of this second wave of data collection will be to add to the data collected in the first
wave with additional treatment conditions and additional observations (the sample size aimed
for in the first data collection wave was not quite reached due to some potential participants
not physically being in Bonn during the Covid-19 pandemic).
Intervention Start Date
2021-10-26
Intervention End Date
2021-11-05

Primary Outcomes

Primary Outcomes (end points)
See attached Pre-Analysis Plan
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
See attached Pre-Analysis Plan
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
The experiment studies incentivized choices between different restaurant meal options. The experimental conditions vary in the information which is provided to participants at the moment of choice.
Experimental Design Details
See attached Pre-Analysis Plan
Randomization Method
See attached Pre-Analysis Plan
Randomization Unit
See attached Pre-Analysis Plan
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
See attached Pre-Analysis Plan
Sample size: planned number of observations
See attached Pre-Analysis Plan
Sample size (or number of clusters) by treatment arms
See attached Pre-Analysis Plan
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
See attached Pre-Analysis Plan
IRB

Institutional Review Boards (IRBs)

IRB Name
German Association for Experimental Economic Research e.V.
IRB Approval Date
2021-05-26
IRB Approval Number
BnyKWhHQ
Analysis Plan

Analysis Plan Documents

Preregistration

MD5: 12fd1d9e764ff9d120b5a2c130303634

SHA1: fb308b2410f6656ad0647822ee069b5c4654c4e4

Uploaded At: October 24, 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