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Turning opposition into support to immigration. The role of social norms

Last registered on August 29, 2019
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Pre-Trial

Trial Information

General Information

Title
Turning opposition into support to immigration. The role of social norms
RCT ID
AEARCTR-0004628
Initial registration date
August 27, 2019

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 29, 2019, 8:41 AM EDT

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

Locations

Country
United Kingdom of Great Britain and Northern Ireland
Region

Primary Investigator

Name
Cristina Cattaneo
Affiliation
RFF-CMCC and CMCC
Contact Primary Investigator

Other Primary Investigator(s)

Additional Trial Information

Status
On going
Start date
2019-08-27
End date
2019-08-31
Keywords
Other
Additional Keywords
Attitudes, immigration
JEL code(s)
Secondary IDs
Abstract
We run a survey experiment to investigate the effectiveness of social norms in promoting the support to migrants. We design an intervention that presents different social norms regarding other's behaviour and attitude towards migrants and we test their influence on behavioural outcomes with respect to a control where social information is not provided. We explore the channel(s) through which a manipulation of social information is successful in affecting behaviour.
External Link(s)

Registration Citation

Citation
Cattaneo, Cristina. 2019. "Turning opposition into support to immigration. The role of social norms." AEA RCT Registry. August 29. https://doi.org/10.1257/rct.4628-1.0
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
Online experiment
Intervention Start Date
2019-08-28
Intervention End Date
2019-08-29

Primary Outcomes

Primary Outcomes (end points)
The outcomes variables of the experiment are actual behaviours. We measure actual behaviour by measuring the willingness to donate part of the endowment to a non-profit organization operating pro-migrants. As a second measure of actual behaviour, we will check the respondents' willingness to sign a petition in favour of migrants and their actual signature, providing a link to the real petition. The order of the two outcome (petition and donation) will be randomized.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
We plan to conduct an incentivized survey and recruit British participants through the online platform Prolific Academic. Respondents in the treatment groups will receive information on the social norm, namely on what other respondents did before them in terms of donation to a charity operating in favour of migrants. Moreover, to understand to what extent the social norm is effective in changing donations per se, or due to its capability to convey information on the ingroup attitude towards the outgroup, we will also design a treatment where we directly provide information on the ingroup (favourable) attitude towards the outgroup. In the Control treatment respondentswill not receive any information on previous respondents’ behaviour or attitude.
Experimental Design Details
Randomization Method
Even randomization between subjects, in the different groups, done by the software used (qualtrics).
Randomization Unit
Individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
No cluster
Sample size: planned number of observations
4'400 individuals
Sample size (or number of clusters) by treatment arms
1'100
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

Analysis Plan Documents

PAP

MD5: 4bbd725358950ecd268210a5028f915a

SHA1: 397c27196c9d01230581c7cb805ddb025dba391d

Uploaded At: August 27, 2019

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