An audit study on minimum wage legislation

Last registered on March 28, 2025
View Trial History

Pre-Trial

Trial Information

General Information

Title
An audit study on minimum wage legislation
RCT ID
AEARCTR-0003333
Initial registration date
September 18, 2018

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
September 21, 2018, 8:29 PM EDT

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

Last updated
March 28, 2025, 10:29 AM EDT

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

Locations

Country
United States of America
Region

Primary Investigator

Name
Alec Brandon
Affiliation
University of Chicago
Contact Primary Investigator

Other Primary Investigator(s)

PI Name
Justin Holz
PI Affiliation
University of Chicago
Contact Investigator
PI Name
Haruka Uchida
PI Affiliation
University of Chicago
Contact Investigator
PI Name
Andrew Simon
PI Affiliation
University of Michigan
Contact Investigator

Additional Trial Information

Status
Completed
Start date
2018-09-18
End date
2019-05-01
Keywords
Labor
Additional Keywords
JEL code(s)
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
This study considers the call back effects of changes in the minimum wage.
External Link(s)

Registration Citation

Citation
Brandon, Alec et al. 2025. "An audit study on minimum wage legislation." AEA RCT Registry. March 28. https://doi.org/10.1257/rct.3333-3.1
Former Citation
Brandon, Alec et al. 2025. "An audit study on minimum wage legislation." AEA RCT Registry. March 28. https://www.socialscienceregistry.org/trials/3333/history/257340
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
Intervention (Hidden)
Intervention Start Date
2018-09-18
Intervention End Date
2018-11-06

Primary Outcomes

Primary Outcomes (end points)
Call back rates
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
See analysis plan document
Experimental Design Details
See analysis plan document
Randomization Method
See analysis plan document
Randomization Unit
See analysis plan document
Was the treatment clustered?
Yes

Experiment Characteristics

Sample size: planned number of clusters
See analysis plan document
Sample size: planned number of observations
Up to 15,000
Sample size (or number of clusters) by treatment arms
See analysis plan document
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials

Documents

Document Name
Summary of Design and Analysis Plan
Document Type
other
Document Description
Summary of Design and Analysis Plan
File
Summary of Design and Analysis Plan

MD5: 0f23ff91671e542ca5ee4b271f30a401

SHA1: c0b3f6ad984753f160523e96fde088196a896a3b

Uploaded At: September 18, 2018

IRB

Institutional Review Boards (IRBs)

IRB Name
University of Chicago Social and Behavioral Sciences IRB
IRB Approval Date
2018-07-12
IRB Approval Number
IRB18-0873
Analysis Plan

Analysis Plan Documents

second addendum to pre-analysis plan

MD5: 9226cb4525017c27ff70f26074819562

SHA1: 36998d5825dc79410faf85702c786070141566ff

Uploaded At: April 01, 2019

pre-analysis plan

MD5: 0f23ff91671e542ca5ee4b271f30a401

SHA1: c0b3f6ad984753f160523e96fde088196a896a3b

Uploaded At: September 21, 2018

addendum to pre-analysis plan

MD5: 1521f0ec7517877a68fa0a4047acac9e

SHA1: 0387cab9e4a5fe0d8d17e7c7a8ecb16e7cf58981

Uploaded At: December 05, 2018

Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
No
Data Collection Complete
Yes
Data Collection Completion Date
Final Sample Size: Number of Clusters (Unit of Randomization)
Was attrition correlated with treatment status?
Final Sample Size: Total Number of Observations
Final Sample Size (or Number of Clusters) by Treatment Arms
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials