Lecturer in Economics

Tamás Dávid-Barrett

  • I am an evolutionary behaviour scientist, with a particular interest in the architecture and regulation of social networks.

  • I am a professor at the Centro de Investigación de Complejidad Social at the Universidad del Desarolloin Santiago de Chile.

  • I was educated in London, Cambridge and Budapest.

  • Before becoming an academic, I ran a research consultancy focusing on emerging economies.

A detail from the back gate to Trinity College, with a gryphon in metal.


At Trinity, I teach first year micro-economics.


I am a behavioural scientist, asking what traits allow humans to live in large and culturally complex societies. My work focuses on how the structure of social networks changes during falling fertility, urbanization, and migration, as well as how social networks vary over the human life-course. My current projects include: the origins of inequality regulation; why the behavioural rules between men and women vary so much across cultures; and the evolutionary foundations of sharing behaviours.

You can find out more about my work here.

Selected Publications

‘Herding Friends in Similarity-Based Architecture of Social Networks’, Sci Rep (2020) 10, 4859

‘Network Effects of Demographic Transition’, Sci Rep (2019) 9, 2361

‘Social Network Complexity in Mozart’s Figaro’, in eds. Tamás Dávid-Barrett, James Carney, Anna Rotkirch and Isabel Behncke Izquierdo, Evolution and Popular Narrative, Critical Studies Vol. 38 (Brill, 2019)

With Robin Dunbar, ‘Fertility, Kinship, and Evolution of Mass Ideologies’, Journal of Theoretical Biology (2017) 417, 20-27

With J. Kertesz, A. Rotkirch, A. Ghosh, K. Bhattacharya, D. Monsivais and K. Kaski, ‘Communication with family and friends across the life course’, Plos One (2016)

With I. Behncke Izquierdo, J. Carney, K. Nowak, J. Launay and A. Rotkirch, ‘Life Course Similarities on Social Network Sites’, Advances in Life Course Research (2016) 30, 84-89

Dr David-Barrett

Humanity is facing an existential crisis. To survive, we must understand how our societies work and where we come from.