Populism and Political Parties Expert Survey (POPPA)
poppa-data.bsky.social
Populism and Political Parties Expert Survey (POPPA)
@poppa-data.bsky.social
This is the official account of the Populism and Political Parties Expert Survey (POPPA) || www.poppa-data.eu
Key takeaways:
– Radical right parties remain the most populist, followed by the radical left
– Nativism & left-wing economic rhetoric are strongest predictors
– Populism has declined since 2018, esp. among parties with weaker nativist/authoritarian profiles 2/2
September 4, 2025 at 10:22 AM
Most of all: thanks to the 324 experts who were so kind to share their expertise with us - and with all of us (as this is a public data source.)

Have fun!
November 21, 2024 at 12:16 PM
The project is a collective effort by Andrej Zaslove (Radboud U), @mauritsmeijers.bsky.social and @robert-a-huber.bsky.social. We are thank for for the amazing research assistance by Sanne Van Helmondt, Puck Overhaart, Victor Bouemar, Annika Püschner and Grace Steffens.
November 21, 2024 at 12:16 PM
See for instance this item on 'democratic commitment'. The item asked experts to place the party on ranging from "priortizing own political gain" (0) to "priortizing democratic rules and norms" (10).

That produces this picture : (only radical left and radical right shown). 5/
November 21, 2024 at 12:16 PM
In addition, we offer new items, measuring party traits with respect to democracy; climate issues; compromise; and issue salience amongst others.

NB: Some of these newer items are still under embargo, but those will become available for public use soon. 4/
November 21, 2024 at 12:16 PM
Here is a plot of the variables Overall Left-Right Position and Populism. You can play with the data yourself using our Shiny App!

Find it on our website: poppa-data.eu 3/
November 21, 2024 at 12:16 PM
The 2023 wave largely follows the same approach as the 2018. Our unique selling point: a comprehensive, multidimensional continuous measure of parties' populism. Please see our working paper on @socarxiv.bsky.social for a full discusison of the approach and the 2023 wave. osf.io/9wmjb 2/
OSF
osf.io
November 21, 2024 at 12:16 PM