Regional Mobility and the Formation of National Identity

Last registered on December 16, 2020

View Trial History

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

Country

Spain

Region

Primary Investigator

Name

Christopher Roth

Affiliation

University of Cologne

Contact Primary Investigator

Other Primary Investigator(s)

PI Name

Manuel Bagues

PI Affiliation

Additional Trial Information

Status

Completed

Start date

2020-01-28

End date

2020-02-11

Keywords

Other

Additional Keywords

Identity, military service, regional migration, intergroup exposure, beliefs.

JEL code(s)

R23, D91, Z1

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.5350-1.1

Sponsors & Partners

Experimental Details

Interventions

Intervention(s)

See pre-analysis plan.

Intervention (Hidden)

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

See pre-analysis plan.

Experimental Design Details

Randomization Method

Lottery

Randomization Unit

Individual

Was the treatment clustered?

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.

Supporting Documents and Materials

IRB