#12525. Studying segregation in Estonia using call data records

July 2026publication date
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Journal’s subject area:
Sociology
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Abstract:
Studying segregation between populations of different ages, ethnicities and social classes has been a prominent theme for at least half a century. To measure segregation, past works often use governmental surveys due to the scarcity of reliable data. In this work, we used call data records (CDR) provided by one of the largest mobile operators in Estonia, for studying segregation behavior based on gender, age, language and county. We consider commonly used Freeman’s segregation index for measuring segregation. Our findings suggest that (1) Gender: gender segregation exists in Estonia and its traces are visible in individuals calling hours, connectivity among age-groups, preferred language of communication, calling county and at the workplace; (2) Age: the prime working individuals (i.e., (25–54) age-group) and elderly (i.e., (64–100) age-group) are more segregated; and (3) Language: Estonian-speaking and Russian-speaking individuals are segregated based on language.
Keywords:
Call data records; Data analysis; Estonia; Freeman’s index; Segregation

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