Matthias is an Associate Professor at IBEI. A sociologist by training, he has a PhD from Brown University and previously held a postdoctoral fellowship at the University of Manchester. He has been a visiting researcher at Princeton University, the Freie Universität and the Humboldt Universität in Berlin, the Universidad de San Martín and the Facultad Latinoamericana de Ciencias Sociales in Buenos Aires, the Universidad Nacional Autónoma de México, and the Instituto de Estudios Peruanos in Lima. Matthias’ research focuses in correcting the ahistorical approach that underpins the supposedly negative relationship between ethnic diversity and public goods provision. He has also published widely on how states construct a sense of national belonging, how civil society actors negotiate and contest official nationalisms, and the extent to which ordinary citizens subscribe to official and counter-state identity projects.