Gender Difference in Firm and Market Labor Supply Elasticities

Last registered on August 25, 2018
View Trial History

Pre-Trial

Trial Information

General Information

Title
Gender Difference in Firm and Market Labor Supply Elasticities
RCT ID
AEARCTR-0002394
Initial registration date
August 21, 2017

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 22, 2017, 11:49 AM EDT

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

Last updated
August 25, 2018, 3:21 PM 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
Sydnee Caldwell
Affiliation
UC Berkeley
Contact Primary Investigator

Other Primary Investigator(s)

PI Name
Emily Oehlsen
PI Affiliation
Über Technologies, Inc.
Contact Investigator

Additional Trial Information

Status
On going
Start date
2017-04-01
End date
2018-12-31
Keywords
Labor
Additional Keywords
labor supply, gender
JEL code(s)
Secondary IDs
Abstract
A field experiment conducted in conjunction with a national rideshare company to (1) produce experimental estimates of intensive and extensive margin labor supply elasticities by gender and (2) investigate gender differences in firm-specific labor supply elasticities.
External Link(s)

Registration Citation

Citation
Caldwell, Sydnee and Emily Oehlsen. 2018. "Gender Difference in Firm and Market Labor Supply Elasticities." AEA RCT Registry. August 25. https://doi.org/10.1257/rct.2394-2.0
Former Citation
Caldwell, Sydnee and Emily Oehlsen. 2018. "Gender Difference in Firm and Market Labor Supply Elasticities." AEA RCT Registry. August 25. https://www.socialscienceregistry.org/trials/2394/history/33475
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2017-04-01
Intervention End Date
2017-10-31

Primary Outcomes

Primary Outcomes (end points)
hours worked, fares collected, performance (star) ratings, and days worked
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
There were two waves of the experiment. In each we first randomly offered subsets of drivers the opportunity to drive for a higher wage (for a limited period of time). Drivers who accepted these offers were contacted with subsequent offers to buy additional weeks of higher-wage driving for a small one-time fee. We collected data on driving behavior and opt-in choices.
Experimental Design Details
The experiment is designed to estimate firm- and market-labor supply elasticities.

There were two waves of the experiment. In each we first randomly offered subsets of drivers the opportunity to drive for a higher wage (for a limited period of time). Drivers who accepted these offers were contacted with subsequent offers to buy additional weeks of higher-wage driving for a small one-time fee. We collected data on driving behavior and opt-in choices.

We conducted the first wave of the experiment when substitution across platforms was difficult and once when it was easy for drivers to shift hours across different ride share platforms.
Randomization Method
randomization done in office by a computer
Randomization Unit
individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
approximately 5000 drivers
Sample size: planned number of observations
approximately 5000 drivers
Sample size (or number of clusters) by treatment arms
2500 treatment, 2500 control
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
MIT
IRB Approval Date
2016-05-19
IRB Approval Number
1605555831
Analysis Plan

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