Why do Governments Implement Inefficient Environmental Policies?

Last registered on February 13, 2023


Trial Information

General Information

Why do Governments Implement Inefficient Environmental Policies?
Initial registration date
February 09, 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
February 13, 2023, 10:42 AM EST

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


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Primary Investigator

Yale University

Other Primary Investigator(s)

PI Affiliation
PI Affiliation
PI Affiliation

Additional Trial Information

In development
Start date
End date
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Environmental policies have disparate effects on household well-being, pollution, and other socially important outcomes. This study investigates beliefs about and support for the choice of environmental policies and
policy instruments, considering their objective and subjective properties.
External Link(s)

Registration Citation

Lauletta, Maximiliano et al. 2023. "Why do Governments Implement Inefficient Environmental Policies?." AEA RCT Registry. February 13. https://doi.org/10.1257/rct.10875-1.0
Experimental Details


Intervention Start Date
Intervention End Date

Primary Outcomes

Primary Outcomes (end points)
* Support of different policy instrument
* Perceived effect of different instruments
Primary Outcomes (explanation)
We will estimate support based on whether participants say they support a policy, based on the participants' ranking of the policies, and based on the stated environmental goal participants prefer for each policy

We will estimate the effect of each policy instrument on perceived electricity costs and inequality

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
We will estimate how interventions teaching basic economic principles affect support for different environmental policy instruments.
Experimental Design Details
Not available
Randomization Method
The randomization is conducted online by Qualtrics. Each participant is assigned to one of two videos with equal probability and assigned to watch the video in the beginning or the end of the survey with equal probability.
Randomization Unit
Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters
Approximately 2000
Sample size: planned number of observations
Approximately 2000
Sample size (or number of clusters) by treatment arms
Approximately 500
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)

Institutional Review Boards (IRBs)

IRB Name
US Berkeley Office for Protection of Human Subjects
IRB Approval Date
IRB Approval Number