Preda, A. 2019. The Economy of Interactions. Comment on “The Functions of Social Interaction in the Knowledge-Creative Economy: Between Co-Presence and ICT-Mediated Social Relations,” by Marianna d’Ovidio and Alessandro Gandini. Sociologica. 13, 1 (Jan. 2019), 67–70. DOI:https://doi.org/10.6092/issn.1971-8853/9389.