This document summarizes a talk about the distribution of international migrants across settlements in Croatia. It discusses migration studies and basic migration terms. It provides data on internal migration within countries like Austria and Croatia, as well as international migration trends to and from Croatia at the level of countries and municipalities. Network analysis is used to represent migration flows and weighted reciprocity is discussed for different levels of migration.

1. Distribution of international migrants across Croatian
settlements
DSC Adria Open Day Talks
May 19, 2023 @
University of Rijeka
Faculty of Informatics and Digital Technologies
Dino Pitoski, PhD
YUFE Postdoc @ AIRI UNIRI
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2. Migration Studies
Migration – a lurking topic;
- war and refugeesm (displacement)
- from escaping poverty to „economic” migration
- desperate demographic situation
- integration - assimilation - naturalization
Interdisciplinarity;
- social scientists
- economists (econometricians, statisticians)
- data scientists (including network scientists)
- climate scientists
- ...
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3. Basic terms
Migration - a loosely defined phenomenon; terminology often used deliberately inappropriately and irresponsibly
(an "official" record of the entire terminology of migration-related terms available at: https://www.iom.int/key-
migration-terms)
The most common definition of migration: relocation with registration of a new residence for at least one year
Two (three) basic categories:
- international migration (migration between different countries)
- internal migration (migration within one country)
- refugees, asylum seekers, and other categories which we do not know (if we) discuss here
Data on the widest geographical level (world) while on the smallest level in terms of population (human
settlements (cities, towns and villages)): unavailable.
Data on international migration available from UNCTAD/World Bank, "fastest" link:
https://www.migrationdataportal.org/; but... the same estimated data derived from (rather outdated) models.
Available (and presumably accurate) data are currently only those on internal migrations in a particular country at
the smallest level in terms of population, collected by the Ministries of Interior, passed on to countries’ Statistical
Offices. Data on international migration increasingly available.
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4. Migration at an intra-city level: Vienna
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5. Migration at an intra-country level: Austria
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http://bit.ly/3VnkYcQ

6. Migration at an intra-country level: Croatia
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http://bit.ly/3OK1tsg

7. Migration at an inter-country (international) level: Croatia (I)
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https://bit.ly/CROMIG

8. Immigration to Croatia at the level of countries of emigration: https://tabsoft.co/3ZGeVCc
Immigration to Croatia at the level of immigration counties: https://bit.ly/IMMCROCOUNTIES
Migration to/from Croatia; a network representation in which the nodes represent the countries of
i/emigration and municipalities/cities of e/immigration, and the links represent the number of migrants in
the given year: https://bit.ly/CROMIG
Emigration trends Immigration trends Aging population
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Migration at an inter-country (international) level: Croatia (II)
- data from the National Bureau of Statistics of Croatia, for the period 2016-2021; international migration as
defined at the beginning of the talk
- basic "raw" data: country of i/emigration - Croatian city/municipality of e/immigration - number of persons –
year

9. 9
Network Science meets Regression Analysis
Weighted reciprocity
- Intra-city migration Vienna:
75%
- Intra-country migration
Austria 60%
- Intra-country migration
Croatia: 49%
- Inter-country migration
Croatia: 35%

10. Distribution of international migrants across Croatian
settlements
DSC Adria Open Day Talks
May 19, 2023 @
University of Rijeka
Faculty of Informatics and Digital Technologies
Dino Pitoski, PhD
YUFE Postdoc @ AIRI UNIRI
10