Regional Mobility and the Formation of National Identity

Last registered on December 16, 2020

Pre-Trial

Trial Information

General Information

Title
Regional Mobility and the Formation of National Identity
RCT ID
AEARCTR-0005350
Initial registration date
January 30, 2020

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
February 07, 2020, 4:00 PM EST

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

Last updated
December 16, 2020, 5:41 AM EST

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

Locations

Region

Primary Investigator

Affiliation
University of Warwick

Other Primary Investigator(s)

PI Affiliation

Additional Trial Information

Status
Completed
Start date
2020-01-28
End date
2020-02-11
Secondary IDs
Abstract
We study how exogenous variation in geographic mobility affects people’s beliefs and their identity. We combine a unique natural experiment, the random assignment of male conscripts to different locations throughout spain, with unique survey data on preferences, beliefs and identity. We study whether being randomly assigned to com- plete the military service outside of one’s region of residence has a long-lasting im- pact on people’s sense of national identity and their beliefs. In this pre-analyis plan we specify (i) our main empirical specifications, (ii) the set of outcomes we plan to analyze, (iii) the sample size and sample inclusion criteria, (iv) power calculations based on pilot data, (v) adjustment for multiple hypothesis testing, and (vi) the exact experimental instructions used.
External Link(s)

Registration Citation

Citation
Bagues, Manuel and Christopher Roth. 2020. "Regional Mobility and the Formation of National Identity." AEA RCT Registry. December 16. https://doi.org/10.1257/rct.5350
Experimental Details

Interventions

Intervention(s)
See pre-analysis plan.
Intervention Start Date
2020-01-29
Intervention End Date
2020-02-10

Primary Outcomes

Primary Outcomes (end points)
See pre-analysis plan.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
See pre-analysis plan.
Experimental Design Details
Randomization Method
Lottery
Randomization Unit
Individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
4200
Sample size: planned number of observations
4300
Sample size (or number of clusters) by treatment arms
1600 were randomly assigned to complete the military service in their region of residence
2700 were randomly assigned to complete the military service outside of their region of residence
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
The minimum detectable effect size for a power of 80% for the main outcomes of interest for national identity for the sample size of 4300 is 0.084 of a standard deviation.
IRB

Institutional Review Boards (IRBs)

IRB Name
University of Warwick (HSSREC)
IRB Approval Date
2019-12-19
IRB Approval Number
HSSREC 55/19-20
Analysis Plan

Analysis Plan Documents

PAP Mobility

MD5: 772226c3ee283a9e892819052824a05d

SHA1: 0d4f68159628c1af56033f38efb2b92097a92ecd

Uploaded At: January 30, 2020

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