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Effect of Tax Price Salience on Charitable Giving
Last registered on September 25, 2015

Pre-Trial

Trial Information
General Information
Title
Effect of Tax Price Salience on Charitable Giving
RCT ID
AEARCTR-0000846
Initial registration date
September 25, 2015
Last updated
September 25, 2015 2:01 PM EDT
Location(s)
Primary Investigator
Affiliation
University of British Columbia
Other Primary Investigator(s)
PI Affiliation
McMaster University
PI Affiliation
Wilfrid Laurier University
Additional Trial Information
Status
In development
Start date
2015-09-21
End date
2015-10-07
Secondary IDs
Abstract
This is a fundraising field experiment. The purpose of this study is to determine the effect of increasing the tax price salience of charitable gifts on giving behaviour.
External Link(s)
Registration Citation
Citation
Hickey, Ross, Abigail Payne and Justin Smith. 2015. "Effect of Tax Price Salience on Charitable Giving." AEA RCT Registry. September 25. https://doi.org/10.1257/rct.846-1.0.
Former Citation
Hickey, Ross, Abigail Payne and Justin Smith. 2015. "Effect of Tax Price Salience on Charitable Giving." AEA RCT Registry. September 25. https://www.socialscienceregistry.org/trials/846/history/5396.
Experimental Details
Interventions
Intervention(s)
Participants were randomly selected from a large local employer. This experiment is done in collaboration with a charitable foundation that facilitates employee giving - allowing donors to have donations automatically deducted from their pay by their employer and remitted to the foundation. There are two protocols for the experiment that have been randomly assigned. Under protocol 1 participants will be asked to sign up for employee giving. Under protocol 2 participants will be informed about the tax treatment of giving in their jurisdiction and then asked to sign up for employee giving.
Intervention Start Date
2015-09-21
Intervention End Date
2015-10-07
Primary Outcomes
Primary Outcomes (end points)
Employee signed up for employee giving.
Employee retained form and indicated willingness to sign up for employee giving.
Employee did not keep form for employee giving.
Employee gifts.
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
Framed field experimental design.
Experimental Design Details
Randomization Method
Done live by computer on server through web-interface.
Randomization Unit
Individual
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
1 employer
Sample size: planned number of observations
200 (approximately 800 solicited for participation, expect 1/4 sample size)
Sample size (or number of clusters) by treatment arms
100 individuals in control, 100 individuals in treatment
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
University of British Columbia Okanagan Campus Behavioural Research Ethics Board (BREB)
IRB Approval Date
2015-09-21
IRB Approval Number
H15-02126
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