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Job Flexibility and Employer/Employee Behavior
Last registered on April 29, 2020

Pre-Trial

Trial Information
General Information
Title
Job Flexibility and Employer/Employee Behavior
RCT ID
AEARCTR-0003927
Initial registration date
March 16, 2019
Last updated
April 29, 2020 2:51 PM EDT
Location(s)

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Primary Investigator
Affiliation
Harvard Kennedy School
Other Primary Investigator(s)
PI Affiliation
Harvard Business School
Additional Trial Information
Status
In development
Start date
2019-03-10
End date
2022-04-30
Secondary IDs
Abstract
We will be testing the effects of an explicit opportunity to advertise a job's flexibility on employer and employee behavior.
External Link(s)
Registration Citation
Citation
Liu, Heidi and Michael Luca. 2020. "Job Flexibility and Employer/Employee Behavior." AEA RCT Registry. April 29. https://doi.org/10.1257/rct.3927-1.1.
Former Citation
Liu, Heidi, Heidi Liu and Michael Luca. 2020. "Job Flexibility and Employer/Employee Behavior." AEA RCT Registry. April 29. http://www.socialscienceregistry.org/trials/3927/history/67227.
Sponsors & Partners

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Experimental Details
Interventions
Intervention(s)
We vary whether employers face an explicit opportunity to advertise whether a job they offer is flexible or not.
Intervention Start Date
2019-03-18
Intervention End Date
2021-04-30
Primary Outcomes
Primary Outcomes (end points)
Take up rate and estimated proportion of job ads with flexible working options
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Log quantity of applicants to a job in a week
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
We vary whether employers face an explicit opportunity to advertise whether a job they offer is flexible or not.
Experimental Design Details
Not available
Randomization Method
Employee order of new ads (conducted by the company)
Randomization Unit
Employers
Was the treatment clustered?
Yes
Experiment Characteristics
Sample size: planned number of clusters
45,000 employers
Sample size: planned number of observations
100,000 advertisements
Sample size (or number of clusters) by treatment arms
50,000 control; 50,000 flexibility prompt
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Assuming significance of .05, power of .8, baseline rate of 20% flexible ads, and 100,000 employer ads, the effect size would be 1.0pp (SD=.03) if ICC=.9, 1.0pp (SD=.02) if ICC=.5, or .8pp (SD=.02) if ICC=.1.
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Harvard University Committee on the Use of Human Subjects
IRB Approval Date
2019-03-10
IRB Approval Number
IRB19-0381 (note: deemed exempt since we will not be looking at PII)
Analysis Plan

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