Hate, Fear and Intergroup Conflict: Experimental Evidence from Nigeria

Last registered on November 16, 2024
View Trial History

Pre-Trial

Trial Information

General Information

Title
Hate, Fear and Intergroup Conflict: Experimental Evidence from Nigeria
RCT ID
AEARCTR-0010605
Initial registration date
December 07, 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
December 13, 2022, 11:13 PM EST

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

Last updated
November 16, 2024, 12:05 PM EST

Last updated is the most recent time when changes to the trial's registration were published.

Locations

Country
Nigeria
Region
Africa

Primary Investigator

Name
Miguel Ortiz
Affiliation
University of California, Berkeley
Contact Primary Investigator

Other Primary Investigator(s)

Additional Trial Information

Status
Completed
Start date
2022-12-08
End date
2023-02-22
Keywords
Behavior, Crime, Violence, & Conflict, Governance, Post-conflict
Additional Keywords
JEL code(s)
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
Despite the high societal costs generated by conflict between social identity groups, we still have little clarity of what the micro-foundations of these conflicts are. Understanding and disentangling the deep drivers of conflict is important because they determine which policies are effective. In this paper, I first ask to what extent is intergroup conflict driven by hate vs fear. To answer this, I use a lab-in-the-field to estimates preferences and beliefs, and understand to what extent each one prevents cooperation between groups. Then, I ask how popular local policies tackle these two channels to increase cooperation. To answer this, I evaluate the effects of radio drama with a message to increase intergroup cooperation, and estimate how the treatment changes the parameters I estimate in the lab, and other real behavior outcomes.
External Link(s)

Registration Citation

Citation
Ortiz, Miguel. 2024. "Hate, Fear and Intergroup Conflict: Experimental Evidence from Nigeria." AEA RCT Registry. November 16. https://doi.org/10.1257/rct.10605-2.0
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
Intervention (Hidden)
Intervention Start Date
2022-12-08
Intervention End Date
2023-02-22

Primary Outcomes

Primary Outcomes (end points)
Social preferences, beliefs about social preferences of ingroup and outgroup members, cooperation level as measured by a coordination game, policy attitudes
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
Includes the randomization of a radio show.
Experimental Design Details
Randomization Method
Randomization done by a computer
Randomization Unit
Individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
NA
Sample size: planned number of observations
850-950 (it may vary given that enumerators are hired by day, not by number of surveys, but the final number is expected to fall in this margin)
Sample size (or number of clusters) by treatment arms
400 control, 400 treatment
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 University of California Berkeley
IRB Approval Date
2022-12-04
IRB Approval Number
NA
Analysis Plan

Analysis Plan Documents

Pre-Analysis Plan for "Spite, Fear and Intergroup Conflict"

MD5: 71e259130b43b6847f4a990ed3d3c4b8

SHA1: 1c6145337f3f5f08679bf597024bf0afb86419b5

Uploaded At: December 07, 2022

Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
Yes
Intervention Completion Date
February 19, 2023, 12:00 +00:00
Data Collection Complete
Yes
Data Collection Completion Date
February 18, 2023, 12:00 +00:00
Final Sample Size: Number of Clusters (Unit of Randomization)
997
Was attrition correlated with treatment status?
No
Final Sample Size: Total Number of Observations
997 subjects at baseline
947 subject at endline
Final Sample Size (or Number of Clusters) by Treatment Arms
499 and 498
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials