Sofia Decides — Bulgaria's First Decidim-Based Participatory Budget With National e-Authentication
Bulgaria
Sofia's civic budget began in 2020 (BGN 1.5m) and now runs on Decidim with national e-ID: 15,000 voted in 2024 …
Uruguay · Montevideo · See the Uruguay profile · See the Montevideo profile
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Montevideo has run a binding participatory budget since 1990. In the 2023 cycle, 390 vetted neighbourhood projects went to a citywide vote, 56,443 ballots were cast and 55 projects won a share of UYU 216m; the programme continued into a new 2026 cycle.
Montevideo's Presupuesto Participativo began in 1990 under intendente Tabare Vazquez as part of the city's decentralisation reform; a 2005 rules review made it a binding, universal-ballot mechanism from 2006. Residents 16+ propose and vote on neighbourhood projects, capped at UYU 4.5 million each, funded strictly in vote order across 18 zonal budgets.
Over 9,100 proposals were submitted from 2006-2018, of which 383 were elected. The 2023 cycle drew 56,443 ballots (up 18% on 2021, 7,942 online) and elected 55 projects sharing UYU 216 million; the 2021 cycle set a record with 899 proposals and 89,722 votes.
The city publishes no completion or outcome data on whether elected projects were actually built on time or at cost; an independent 2025 study found conventional elections draw higher turnout than the PP, with partisan mobilisation driving most variation. Its clearest strength is 36 years of continuous, institutionalised operation, even as the nominal budget has stayed frozen since 2021.
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Where this practice's information was retrieved from, and when.
Bulgaria
Sofia's civic budget began in 2020 (BGN 1.5m) and now runs on Decidim with national e-ID: 15,000 voted in 2024 …
Ukraine
Ukraine's ProZorro platform, co-built from 2014 by volunteer technologists, government and donors, cut single-supplier contracting from 11% to 5% within …
Belgium
City-wide non-profit (founded 2013) steering Leuven toward climate neutrality via a quadruple-helix model of government, knowledge institutions, companies and citizens. …
Spain
Barcelona City Council built the open-source platform Decidim to run participatory budgeting and planning; its 2016 strategic-plan process drew 40,000+ …
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