Pabulib is an open PArticipatory BUdgeting LIBrary. The aim of this website is to collect the participatory budgeting data from all over the world. Files are stored in .pb data format.
We hope that Pabulib will foster meaningful research on PB, in particularly by helping the computational social choice community to offer better aggregation methods to be used in real-world instances of PB.
The website is maintained by Ignacy Janiszewski and Stanisław Szufa.
Pabulib was funded in 2020 by Dariusz Stolicki, Stanisław Szufa, and Nimrod Talmon. Initially .pb format was informally introduced in Pabulib: A Participatory Budgeting Library. Later, in 2023 it was formalized in a companion paper. Since 2025, Pabulib has operated under the auspices of the Polish association Nauka dla Demokracji (“Science for Democracy”).
Sharing of data sets including personally identifiable voter information may violate the laws of the country of origin or the European Union privacy law. Accordingly, we (1) ask the submitters to either remove all personally identifiable voter information before submission or to advise us of the manner in which such information may be contained in the dataset, and (2) reserve the right to unilaterally remove all personally identifiable voter information. By "personally identifiable voter information" we mean any information that may be used to ascertain the identity of individual voter with certainty and particularity.
The Pabulib project is maintained by the Jagiellonian Center for Quantitative Studies in Political Science and funded under the Polish Ministry of Science grant no. 0395/DLG/2018/10.
Moreover, this project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement No 101002854).