An experimental analysis of income targeting
Last registered on June 10, 2019

Pre-Trial

Trial Information
General Information
Title
An experimental analysis of income targeting
RCT ID
AEARCTR-0004220
Initial registration date
May 17, 2019
Last updated
June 10, 2019 10:40 PM EDT
Location(s)
Region
Primary Investigator
Affiliation
University of Chicago
Other Primary Investigator(s)
PI Affiliation
PI Affiliation
PI Affiliation
PI Affiliation
Additional Trial Information
Status
Completed
Start date
2019-05-17
End date
2019-05-18
Secondary IDs
Abstract
We test for income targeting with ride share drivers
External Link(s)
Registration Citation
Citation
Brandon, Alec et al. 2019. "An experimental analysis of income targeting." AEA RCT Registry. June 10. https://www.socialscienceregistry.org/trials/4220/history/47925
Experimental Details
Interventions
Intervention(s)
Drivers will be randomly assigned to receive a $1 or $40 earnings shock. Subsequently, drivers will be offered a large or small incentive for completing a set number of rides.
Intervention Start Date
2019-05-17
Intervention End Date
2019-05-18
Primary Outcomes
Primary Outcomes (end points)
Labor supplied after earnings shock for drivers in the earnings shock experiment
Ride streak completion for drivers in the earnings shock and ride streak incentive experiment
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
A ride streak incentive and an earnings shock will be experimentally varied for ride share drivers
Experimental Design Details
Randomization Method
Computer
Randomization Unit
Driver
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
8,603 drivers
Sample size: planned number of observations
8,603 drivers
Sample size (or number of clusters) by treatment arms
Earnings shock experiment:
$2 Earnings Shock: 6,882
$40 Earnings Shock: 1,721

Ride streak incentive experiment
Supply 3 rides and earn $6: 50%
Supply 3 rides and earn $12: 50%
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Drivers assigned to receive a $40 earnings shock will supply -0.17 hours less work than drivers assigned to receive a $2 earnings shock
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
University of Chicago
IRB Approval Date
2019-03-05
IRB Approval Number
IRB19-0409
Analysis Plan

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Post-Trial
Post Trial Information
Study Withdrawal
Intervention
Is the intervention completed?
No
Is data collection complete?
Data Publication
Data Publication
Is public data available?
No
Program Files
Program Files
Reports and Papers
Preliminary Reports
Relevant Papers