Firm Nudges

Last registered on May 05, 2022

Pre-Trial

Trial Information

General Information

Title
Firm Nudges
RCT ID
AEARCTR-0009353
Initial registration date
May 05, 2022

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
May 05, 2022, 12:55 PM EDT

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

Locations

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Primary Investigator

Affiliation
Microsoft Research

Other Primary Investigator(s)

PI Affiliation
PI Affiliation
PI Affiliation

Additional Trial Information

Status
In development
Start date
2022-03-01
End date
2022-12-31
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
This is a randomized experiment with the bike sharing company HelloBike. More info will be disclosed after the trial is complete.
External Link(s)

Registration Citation

Citation
Allcott, Hunt et al. 2022. "Firm Nudges." AEA RCT Registry. May 05. https://doi.org/10.1257/rct.9353
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2022-05-06
Intervention End Date
2022-10-31

Primary Outcomes

Primary Outcomes (end points)
Orderly bike parking, number of rides taken, and membership renewals
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
More info will be disclosed after the trial is complete.
Experimental Design Details
Not available
Randomization Method
Randomization done by computer
Randomization Unit
Individual user
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
11,000 users
Sample size: planned number of observations
11,000 users
Sample size (or number of clusters) by treatment arms
Control group: 4000
Initial nudge group: 4000
Initial rebate group: 2000
Base price rebate group: 1000
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
Microsoft Research
IRB Approval Date
2022-05-05
IRB Approval Number
10323