An economic experiment on institutions and trust
Last registered on January 24, 2020

Pre-Trial

Trial Information
General Information
Title
An economic experiment on institutions and trust
RCT ID
AEARCTR-0005323
Initial registration date
January 19, 2020
Last updated
January 24, 2020 4:02 PM EST
Location(s)

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Primary Investigator
Affiliation
University Pompeu Fabra Barcelona
Other Primary Investigator(s)
Additional Trial Information
Status
In development
Start date
2020-01-21
End date
2020-03-15
Secondary IDs
Abstract
Developing interpersonal trust outside the close-knit circle of known people and community members is a key determinant for the success of impersonal trade and economic development. In this project, I study how property rights impact on the development of trust and trustworthiness preferences affecting in-group and out-group members of a community. Specifically, I study the effects of a land tenure reform implemented in a West African country that transformed collective and informal land rights in a system akin to private ownership.
I combine the peculiar implementation of the reform with a Trust game designed to elicit trust and trustworthiness preferences both within the rural village participants belong to and between participants belonging to different villages.
External Link(s)
Registration Citation
Citation
Fabbri, Marco. 2020. "An economic experiment on institutions and trust." AEA RCT Registry. January 24. https://doi.org/10.1257/rct.5323-1.1.
Experimental Details
Interventions
Intervention(s)
See attached pre-analysis plan
Intervention Start Date
2020-01-21
Intervention End Date
2020-03-15
Primary Outcomes
Primary Outcomes (end points)
Trust and trustworthiness measures in a standard trust game
Primary Outcomes (explanation)
See attached pre-analysis plan
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
I implement a standard trust game that will be played once with a partner from the same village and once with a partner belonging to a different village. I combine the trust game with the implementation of a property rights reform that transformed collective and informal property in a system akin to private ownership
Experimental Design Details
Not available
Randomization Method
In office done by a computer. See pre-analysis plan.
Randomization Unit
Village
Was the treatment clustered?
Yes
Experiment Characteristics
Sample size: planned number of clusters
32
Sample size: planned number of observations
576
Sample size (or number of clusters) by treatment arms
144 treated*in-group, 144 treated*outgroup, 144 control*in-group, 144 control out-group
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
See attached pre-analysis plan
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Ethics Commitee - Parc de Salut MAR
IRB Approval Date
2018-04-11
IRB Approval Number
2018/8015/I
Analysis Plan

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