publication . Preprint . 2010

Reciprocity of mobile phone calls

Kovanen, Lauri; Saramaki, Jari; Kaski, Kimmo;
Open Access English
  • Published: 03 Feb 2010
We present a study of the reciprocity of human behaviour based on mobile phone usage records. The underlying question is whether human relationships are mutual, in the sense that both are equally active in keeping up the relationship, or is it on the contrary typical that relationships are lopsided, with one party being significantly more active than the other. We study this question with the help of a mobile phone data set consisting of all mobile phone calls between 5.3 million customers of a single mobile phone operator. It turns out that lopsided relations are indeed quite common, to the extent that the variation cannot be explained by simple random deviatio...
free text keywords: Physics - Physics and Society
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