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Local corruption and income underreporting
Last registered on June 28, 2019

Pre-Trial

Trial Information
General Information
Title
Local corruption and income underreporting
RCT ID
AEARCTR-0004151
Initial registration date
April 29, 2019
Last updated
June 28, 2019 5:08 AM EDT
Location(s)
Region
Primary Investigator
Affiliation
University of Zurich
Other Primary Investigator(s)
Additional Trial Information
Status
In development
Start date
2019-05-06
End date
2019-08-30
Secondary IDs
Abstract
This is an audit experiment. To avoid contamination, no information is provided at this point. A detailed description is provided in a separate data analysis plan that will be made public upon completion of the audit experiment.
External Link(s)
Registration Citation
Citation
Zünd, Christian. 2019. "Local corruption and income underreporting." AEA RCT Registry. June 28. https://doi.org/10.1257/rct.4151-2.0.
Former Citation
Zünd, Christian. 2019. "Local corruption and income underreporting." AEA RCT Registry. June 28. https://www.socialscienceregistry.org/trials/4151/history/48832.
Experimental Details
Interventions
Intervention(s)
Intervention Start Date
2019-05-06
Intervention End Date
2019-06-28
Primary Outcomes
Primary Outcomes (end points)
This is an audit experiment. To avoid contamination, no information is provided at this point. A detailed description is provided in a separate data analysis plan that will be made public upon completion of the audit experiment.
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
This is an audit experiment. To avoid contamination, no information is provided at this point. A detailed description is provided in a separate data analysis plan that will be made public upon completion of the audit experiment.
Experimental Design Details
Randomization Method
Corruption instrument
-- Brazil's public audit lottery

Audit experiment
-- randomization using Stata
Randomization Unit
Corruption instrument
-- Unit of randomization: municipalities

Audit experiment
-- Unit of randomization: municipalities
-- Block randomized with respect to state and audit instrument
Was the treatment clustered?
Yes
Experiment Characteristics
Sample size: planned number of clusters
5320 municipalities
Sample size: planned number of observations
20,994 interactions with 6998 offices in 5320 municipalities
Sample size (or number of clusters) by treatment arms
Treatment
-- 7,560 interactions with 2,520 offices in 1,867 municipalities

Control
-- 13,434 interactions with 4,478 offices in 3,453 municipalities
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Human Subjects Committee of the Faculty of Economics, Business Administration and Information Technology at the University of Zurich
IRB Approval Date
2019-04-02
IRB Approval Number
OEC IRB # 2019-010
Analysis Plan

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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