The Political Economy of Minimum Wages

Last registered on August 24, 2023


Trial Information

General Information

The Political Economy of Minimum Wages
Initial registration date
August 17, 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
August 24, 2023, 4:53 AM EDT

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



Primary Investigator

UCLA Anderson

Other Primary Investigator(s)

Additional Trial Information

In development
Start date
End date
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
This study focuses on studying an individual's preferences on minimum wage policies. It will reveal what people think about and what influences their vote when they are to vote for or against a minimum wage bill. I hope to shed some light on the link between an individual's location on the wage distribution and their attitudes towards minimum wages.
External Link(s)

Registration Citation

Nguyen, Anh. 2023. "The Political Economy of Minimum Wages." AEA RCT Registry. August 24.
Sponsors & Partners

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Experimental Details


Intervention Start Date
Intervention End Date

Primary Outcomes

Primary Outcomes (end points)
Outcome variable is 1 if an individual supports an increase in the minimum wage, and 0 if the individual opposes.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
The survey that I am conducting is sent to a sample of more than 1300 individuals. Everyone is asked the same set of questions including demographic questions and questions about minimum wages and low-wage employees. Then a group of individuals will be selected randomly to receive an answer for one of the questions that they are asked previously in the survey. Individuals are again selected randomly to receive a message regarding the effects of an increase in the minimum wage. One group will receive a message with a positive impact, while the other group will receive a message with a negative impact. Control group receives no messages. After that, all respondents are asked another same set of questions including their vote on some minimum wage policies and their expectation on some events that could be brought about by these policies.
Experimental Design Details
Randomization Method
Randomization is done by a computer.
Randomization Unit
The sample is randomized at the individual level.
Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters
1300 individuals
Sample size: planned number of observations
1300 individuals
Sample size (or number of clusters) by treatment arms
Treatment 1: 650 control (no information provided), 650 treatment (information provided)
Treatment 2 (within each group above): 216 control, 216 positive message, 216 negative message
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)

Institutional Review Boards (IRBs)

IRB Name
IRB Approval Date
IRB Approval Number


Post Trial Information

Study Withdrawal

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Is the intervention completed?
Data Collection Complete
Data Publication

Data Publication

Is public data available?

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials