Poland and the war in Ukraine. Examining public support and attitudes.

Last registered on February 07, 2023

View Trial History

Pre-Trial

Trial Information

General Information

Title

Poland and the war in Ukraine. Examining public support and attitudes.

RCT ID

AEARCTR-0010916

Initial registration date

February 06, 2023

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, 2023, 11:36 AM EST

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

Locations

Country

Poland

Region

Primary Investigator

Name

Cornel Nesseler

Affiliation

UiS

Contact Primary Investigator

Other Primary Investigator(s)

PI Name

Michał Kobierecki

PI Affiliation

Uniwersytet Łódzki

Contact Investigator

Additional Trial Information

Status

In development

Start date

2023-02-13

End date

2023-02-17

Keywords

Behavior, Post-conflict

Additional Keywords

JEL code(s)

J15; N44; Z2

Secondary IDs

Prior work

This trial is based on or builds upon one or more prior RCTs.

Abstract

In a previous experiment, Gomez-Gonzalez et al. (2021) find that people with Ukrainian-sounding names suffer from discrimination when contacting amateur football clubs. Specifically, they examined Ukrainian, German, and Belarussian-sounding names in Poland.

Because of the war in Ukraine, we want to repeat the experiment. We want to examine if the attitude towards people with Ukrainian-sounding names changed. We want to contact half of the clubs with an additional signal – namely, we want to see if a small text below the application “Peace for Ukraine” changes the response rate. This gives us an opportunity to see if discrimination changed compared to our previous analysis. Additionally, we can examine if this change is connected towards the attitude of the applicants.

Finally, we want to contact 400 coaches after we finished the experiment and ask them to participate in the survey. The survey includes questions regarding the coaches age, the team’s composition, and similar related questions.

External Link(s)

Registration Citation

Citation

Kobierecki, Michał and Cornel Nesseler. 2023. "Poland and the war in Ukraine. Examining public support and attitudes.." AEA RCT Registry. February 07. https://doi.org/10.1257/rct.10916-1.0

Sponsors & Partners

Experimental Details

Interventions

Intervention(s)

Intervention Start Date

2023-02-13

Intervention End Date

2023-02-17

Primary Outcomes

Primary Outcomes (end points)

Our main interest are the following variables:

1. Response rate differences for native- and foreign-sounding groups.
2. Response rate differences for native- and foreign-sounding groups depending on the content of the mail.
3. Examining how survey responses influence the response rate differences.

Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)

1.1. Response rate differences between the three foreign groups.
2.1. Response rate differences between the three foreign groups depending on the content of the mail.

Secondary Outcomes (explanation)

Experimental Design

We want to contact amateur football clubs Poland. The sample includes 1,437 coaches.

Because of the war in Ukraine, we want to repeat the experiment. We want to examine if the attitude towards people with Ukrainian-sounding names changed. We want to contact half of the clubs with an additional signal – namely, we want to see if a small text below the application “Peace for Ukraine” changes the response rate. This gives us an opportunity to see if discrimination changed compared to our previous analysis. Additionally, we can examine if this change is connected towards the attitude of the applicants.

We will use only the same names as in the previous experiment. Thus, we have typical native- and typical foreign-sounding names.
We will randomly allocate one name to one club. We will never contact a club more than once. We will use the different regions to use block randomization to ensure that groups are not overrepresented in specific areas.

We will contact clubs with the following text (but in Polish):

Subject: Trial practice

Hello,
I would like to take part in a trial training session with your team. I have already played at a similar level. Could I come for a trial training session?
Many thanks,
Name

Experimental Design Details

Randomization Method

We use the set seed command in Stata (seed 04032017) to randomly connect one coach to one name.

Randomization Unit

Coaches

Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters

We randomize at the regional level.

Sample size: planned number of observations

We plan to contact 1,437 coaches.

Sample size (or number of clusters) by treatment arms

1. 700 foreign-sounding emails, 737 native-sounding emails
2. 719 emails with a signature, 718 without a signature
3. 217 survey requests for coaches that received an email form a native-sounding name, 182 survey requests for coaches that received an email form a foreign-sounding name

Minimum detectable effect size for main outcomes (accounting for sample design and clustering)

Supporting Documents and Materials

IRB