Roberto Valli
robertovalli.bsky.social
Roberto Valli
@robertovalli.bsky.social
Political scientist @Princeton | PhD from @ETHZurich.
Congratulations Pit!!
October 15, 2025 at 2:20 PM
Congratulations Sven!! 🔥
October 1, 2025 at 7:38 PM
Congrats Theresa!
September 23, 2025 at 2:14 PM
Congrats Reto, such an awesome location!
September 23, 2025 at 2:12 PM
Reposted by Roberto Valli
Finally, if you are at #APSA2025, make sure to stop by at our HPE panel.

When? Sun, Sep. 14, 10 AM

Who?
M. Wilfahrt, L. Arriola, @yoseftadesse.bsky.social, I. Kolesnikov, @ricarthuguet.bsky.social, J. Pierskalla, D. Smith, @jguardado.bsky.social, @robertovalli.bsky.social , @carlmc.bsky.social 🥳
September 9, 2025 at 2:45 PM
Well, that is true, but it is no wild idea. Countries with lots of experience in referenda keep dropping good, calibrated policy thanks to 50% +1 of 35%. It's hard to find the right thresholds to balance noise and voice...
June 9, 2025 at 7:57 PM
Are you sure it's the right country? 😉
May 22, 2025 at 6:06 PM
Link to the preprint version: robertovalli.com/files/train_...
January 28, 2025 at 3:00 AM
Our findings provide a more nuanced evaluation of the effects of modernization. While France witnessed the relatively peaceful assimilation of peripheral groups, the broader picture suggests resistance to state-building, especially in weak, autocratic states with large excluded groups.
January 28, 2025 at 3:00 AM
We find that groups exposed to railway connection experience increased probability of separatist mobilization. Results are robust to an IV strategy and other checks. Our measures of separatism span from the emergence of nationalist organizations to full-fledged armed rebellion.
January 28, 2025 at 3:00 AM
Our DiD strategy exploits the staggered connection of European ethnic groups to the railway network. 1830s-1920s, railways expanded from the state center to the periphery. Together with trade and communication, railroads brought state penetration and internal connectivity.
January 28, 2025 at 3:00 AM