Happy Moments

Last registered on November 07, 2024
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Pre-Trial

Trial Information

General Information

Title
Happy Moments
RCT ID
AEARCTR-0014626
Initial registration date
October 25, 2024

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
November 07, 2024, 12:49 PM EST

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

Locations

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Primary Investigator

Name
Marta Serra-Garcia
Affiliation
UC San Diego
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Other Primary Investigator(s)

PI Name
Uri Gneezy
PI Affiliation
UC San Diego
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Additional Trial Information

Status
In development
Start date
2024-06-01
End date
2025-02-28
Keywords
Behavior, Finance & Microfinance
Additional Keywords
JEL code(s)
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
This experiment aims to test whether reminding customers of “happy moments” (HM) with a product (a positive experience) and varying the timing of the reminder and ask to refer (call to action or CTA) affects the likelihood that a customer refers the product. The customers are randomly assigned to one of 5 main conditions: (1) No communication, (2) Communication 1 day after HM + CTA to refer with reminder of HM; (3) Communication 1 day after HM + CTA to refer with NO reminder of HM; (4) Users have a HM - Communication 1 week after HM + CTA to refer with reminder of HM; and (5) Users have a HM - Communication 1 week after HM + CTA to refer with NO reminder of HM.
A credit card company implements the field experiment, and provides us the data thereafter.

External Link(s)

Registration Citation

Citation
Gneezy, Uri and Marta Serra-Garcia. 2024. "Happy Moments." AEA RCT Registry. November 07. https://doi.org/10.1257/rct.14626-1.0
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
There are 4 treatment conditions and one control condition:
1. Users have a HM - No communication (control)
2. Users have a HM - Communication 1 day after HM + CTA to refer with reminder of HM
3. Users have a HM - Communication 1 day after HM + CTA to refer with NO reminder of HM
4. Users have a HM - Communication 1 week after HM + CTA to refer with reminder of HM
5. Users have a HM - Communication 1 week after HM + CTA to refer with NO reminder of HM
There are different types of messages/HM: NPS, Cashback redemption, MSI, CSAT, referral, and generic message.
Intervention Start Date
2024-06-01
Intervention End Date
2024-10-01

Primary Outcomes

Primary Outcomes (end points)
The fraction of participants who refer the product to others, the number of referrals, and whether the referrals are approved. We also plan to measure their engagement and repayment behavior with the card later on.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
There are 4 treatment conditions and one control condition:
1. Users have a HM - No communication (Control)
2. Users have a HM - Communication 1 day after HM + CTA to refer with reminder of HM
3. Users have a HM - Communication 1 day after HM + CTA to refer with NO reminder of HM
4. Users have a HM - Communication 1 week after HM + CTA to refer with reminder of HM
5. Users have a HM - Communication 1 week after HM + CTA to refer with NO reminder of HM
Experimental Design Details
Not available
Randomization Method
Randomization done by a computer.
Randomization Unit
Individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
500,000 active users. There are strata: Age, Months at the company, Number of logins in previous month, Dormant, Previous referrals, Happy moment in previous month, Gender, Spending level previous month, Credit limit.
Sample size: planned number of observations
500,000
Sample size (or number of clusters) by treatment arms
Equally divided by treatments.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
IRB Approval Date
IRB Approval Number
Analysis Plan