---
title: RadicalxChange Foundation
type: civic tech
status: active
country: US
website: https://www.radicalxchange.org
logo: /assets/org-logos/radicalxchange.png
contact:
  checked: 2026-08-07
  email: info@radicalxchange.org
  source: https://www.radicalxchange.org/about/
summary: A US-founded international nonprofit and movement advancing 'Plurality' —
  mechanisms like quadratic voting and quadratic funding that aim to make democratic
  and economic participation more expressive than one-person-one-vote. National-scale
  adoption in Taiwan and Japan's Team Mirai; a Melbourne chapter is forming as of
  August 2026.
concepts:
- collective-intelligence
- participatory-budgeting
location:
  latitude: 37.8044
  longitude: -122.2712
  name: San Francisco Bay Area, USA
related_orgs:
- vtaiwan
events:
- date: '2018-05-15'
  title: 'Radical Markets: Uprooting Capitalism and Democracy for a Just Society published
    (Posner & Weyl)'
  url: https://en.wikipedia.org/wiki/Glen_Weyl
  quote: 'co-author (with Eric Posner) of the book Radical Markets: Uprooting Capitalism
    and Democracy for a Just Society'
  proof_level: high
  url_checked: '2026-08-10'
  notable: true
- date: '2019-03-01'
  title: First RadicalxChange conference in Detroit — movement formally launched
  url: https://www.radicalxchange.org/events/2019-conference
  quote: Our inaugural conference was held March 22-24 at the A. Alfred Taubman Center
    for Design Education in Detroit, Michigan
  proof_level: high
  url_checked: '2026-08-12'
  notable: true
- date: '2024-04-16'
  title: 'Plurality: The Future of Collaborative Technology and Democracy published
    (Weyl, Tang & community)'
  url: https://en.wikipedia.org/wiki/Glen_Weyl
  quote: 'Plurality: The Future of Collaborative Technology and Democracy'
  proof_level: high
  url_checked: '2026-08-10'
  notable: true
- date: '2026-08-27'
  title: Melbourne chapter launch event — first Australian RadicalxChange chapter
  url: https://events.humanitix.com/radicalxchange-foundation-in-melbourne
  quote: we are also excited to introduce you to the founding members of the new RadicalxChange
    Melbourne chapter
  proof_level: high
  url_checked: '2026-08-12'
  time: '18:00'
  end_time: '20:00'
  notable: true
  coverage_url: /blog/2026/08/07/radicalxchange-is-launching-a-melbourne-chapter--heres-what-it-is/
  country: AU
activity:
  manual:
    checked: 2026-08-07
    date: 2026-08-07
    note: Confirmed active via own website and an upcoming Melbourne chapter launch
      event (27 Aug 2026).
    url: https://www.radicalxchange.org/
  dod:
    checked: 2026-08-09
    date: 2026-08-09
    note: Confirmed live (HTTP 200), site current
last_checked: '2026-08-09'
---

RadicalxChange Foundation is an international nonprofit and movement, founded by economist [E. Glen Weyl](https://glenweyl.com/) in 2018 following public discussion of his book *Radical Markets: Uprooting Capitalism and Democracy for a Just Society* (with Eric Posner). It grew from roughly fifty volunteers into a foundation that convened its first major conference in Detroit in March 2019.[^glenweyl][^propublica]

The foundation champions **Plurality**: a philosophy, and a book by Weyl and [Audrey Tang](https://en.wikipedia.org/wiki/Audrey_Tang) — Taiwan's former Digital Minister — that treats technology as a means of cooperating across difference, rather than a force flattening human agency out of decision-making.[^rxc-about]

## Mechanisms

RadicalxChange's best-known contributions are two voting/funding mechanisms devised by Weyl:

- **Quadratic voting** — lets participants express the *intensity* of a preference, not just its direction, by spending a budget of "voice credits" whose cost per vote rises quadratically.
- **Quadratic funding** — a matching-funds formula for allocating public or philanthropic money toward public goods, weighting the number of contributors over the size of any single contribution.

Together with **Plural Ownership** and **Plural Money**, the foundation packages these as "the Plural Stack." Prototypes have been deployed in Colorado, Nashville, New York, the UK, Brazil, and Sydney.[^rxc-about]

## National-scale adoption

Two examples are cited as evidence the ideas move beyond pilots:

- **Taiwan** — quadratic-style civic tech and Pol.is-based deliberation (see [vTaiwan](vtaiwan.md)) informed by Audrey Tang, co-author of *Plurality*.
- **Japan** — Team Mirai, a party citing the Plurality framework, won parliamentary seats in the 2026 election.[^rxc-about]

## Key people

- **[E. Glen Weyl](https://glenweyl.com/)** — economist at Microsoft Research; founder, board member, and co-author of *Radical Markets* and *Plurality*.[^wiki-weyl]
- **Matt Prewitt** — Foundation President.[^rxc-about]
- **[Jess Scully](https://www.jessscully.com/about)** — Executive Director; previously an elected Councillor and Deputy Lord Mayor of Sydney, where she ran a citizens' jury on the city's 2030–2050 strategic plan; author of *Glimpses of Utopia: Real Ideas for a Fairer World*.[^rxc-jess]

## In Australia

RadicalxChange's Melbourne chapter is newly forming. A public launch event — "An invitation to meet RadicalxChange Foundation in Melbourne," hosted with Small Giants Academy and Today — is scheduled for 27 August 2026.[^humanitix] Jess Scully's connection to Melbourne runs through Small Giants Academy's [Wisdom & Action Forum](https://www.wisdomandaction.com.au/) (May 2026), where Audrey Tang also spoke.[^wisdom-action]

## Links

- Website: [radicalxchange.org](https://www.radicalxchange.org)
- Related: [vTaiwan](vtaiwan.md) — Audrey Tang, co-author of *Plurality*, was vTaiwan's driving government champion

## See also

- [Collective Intelligence](../concepts/collective-intelligence.md)
- [Participatory Budgeting](../concepts/participatory-budgeting.md)
- [vTaiwan](vtaiwan.md)

[^glenweyl]: "Founded by economist Glen Weyl in 2018, the RadicalxChange Foundation is a 501(c)(3) nonprofit dedicated to advancing the RxC movement, to building community, and to education about democratic innovation." ["RadicalxChange"](https://glenweyl.com/radicalxchange/), E. Glen Weyl personal site.

[^propublica]: "Radicalxchange Foundation Ltd Moraga, CA Tax-exempt since July 2019 EIN: 83-2183139" [RadicalxChange Foundation Ltd — Nonprofit Explorer](https://projects.propublica.org/nonprofits/organizations/832183139), ProPublica.

[^rxc-about]: "RadicalxChange sparks imagination for transformative systems change." ["About"](https://www.radicalxchange.org/about/), RadicalxChange Foundation.

[^wiki-weyl]: "Eric Glen Weyl (born May 6, 1985)... is an American economist at Microsoft Research" [E. Glen Weyl](https://en.wikipedia.org/wiki/Glen_Weyl), Wikipedia.

[^rxc-jess]: "Jess Scully is Executive Director of RadicalxChange and an advocate for civic imagination." [Jess Scully](https://www.radicalxchange.org/team/jess-scully/), RadicalxChange Foundation team page.

[^humanitix]: "Join us to learn about civic tech for democracy and community, and explore how our tools might serve your community or sector." ["An invitation to meet RadicalxChange Foundation in Melbourne"](https://events.humanitix.com/radicalxchange-foundation-in-melbourne), Humanitix, 27 August 2026.

[^wisdom-action]: "Audrey Tang (Virtual)... Cyber Ambassador at Ministry of Foreign Affairs, Taiwan (R.O.C.)" and "Trust by Design: Digital Democracy in the Age of AI" [Wisdom & Action Forum 2026 — Speakers](https://www.wisdomandaction.com.au/), Small Giants Academy, 5-7 May 2026, Melbourne.

