01 · Knowledge Atlas
Switch to graph viewAn encyclopedia of social systems
Theories, political philosophies, economic models, institution types and forms of self-government — each idea traced through theory, real examples, critique and results.
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Editors’ selectionConceptAI in governmentUse of machine-learning and automated decision systems by public administrations — from triage and fraud detection to drafting and translation.IdeaTheoryExamplesCritiqueResultsMechanismAI-assisted arbitrationDispute resolution in which AI systems triage cases, summarise evidence or propose outcomes, with or without a human decision-maker.IdeaTheoryExamplesCritiqueResultsExperimentAadhaar: India's biometric digital identityA 12-digit biometric identity number issued since 2010 to about 1.38 billion residents of India and used for welfare, banking and tax. It was placed on a statutory basis in 2016 and upheld with limits by the Supreme Court in 2018, after the 2017 Puttaswamy ruling declared privacy a fundamental right.IdeaTheoryExamplesCritiqueResults
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- Aadhaar: India's biometric digital identityExperimentA 12-digit biometric identity number issued since 2010 to about 1.38 billion residents of India and used for welfare, banking and tax. It was placed on a statutory basis in 2016 and upheld with limits by the Supreme Court in 2018, after the 2017 Puttaswamy ruling declared privacy a fundamental right.
- Abdullah ÖcalanThinkerKurdish political leader, co-founder of the PKK and imprisoned in Turkey since 1999, whose prison writings abandoned the goal of a Kurdish nation-state for 'democratic confederalism', the ideological basis of self-administration in north-east Syria; a deeply contested figure.
- Ada Lovelace InstituteorganisationIndependent research institute established in 2018 by the Nuffield Foundation to ensure that data and AI work for people and society, known for public deliberation on technology such as the Citizens' Biometrics Council and for the Ryder Review of biometrics law.
- AI in governmentConceptUse of machine-learning and automated decision systems by public administrations — from triage and fraud detection to drafting and translation.
- AI-assisted arbitrationMechanismDispute resolution in which AI systems triage cases, summarise evidence or propose outcomes, with or without a human decision-maker.
- Alaska Permanent Fund DividendExperimentAn annual cash dividend paid to eligible Alaska residents since 1982 from the earnings of the state's oil-funded Permanent Fund.
- Albania's AI 'minister' DiellaExperimentAn AI system launched in January 2025 as the e-Albania virtual assistant. In September 2025 the government presented it as a 'virtual minister' for public procurement; its legal status is disputed and the Constitutional Court did not rule on its merits.
- Albert O. HirschmanThinkerEconomist who framed exit and voice as the two responses to decline in firms, organisations and states.
- Alexis de TocquevilleThinkerFrench political scientist and politician whose Democracy in America (1835–40) analysed how equality of conditions shapes politics, and warned of centralisation, apathy and a mild despotism.
- AlgocracyConceptGovernance in which algorithms structure, constrain or take decisions that once required human judgement or law. Coined by A. Aneesh for code-based control of work; extended by Danaher and others to public administration, where it raises problems of opacity, participation, error and redress.
- Algorithmic impact assessmentMechanismA structured assessment of an automated decision system's risks to people's rights and interests, carried out before deployment and reviewed afterwards, with obligations scaled to the risk level. Mandatory for Canadian federal systems since 2019 and, as fundamental rights impact assessments, for public deployers of high-risk AI under the EU AI Act.
- Amartya SenThinkerIndian economist and philosopher, 1998 Nobel laureate for welfare economics, who developed the capability approach, extended social choice theory, analysed famines as failures of entitlement and argued that democracy and a free press protect against famine.
- America in One Room (2019 national Deliberative Poll)ExperimentIn September 2019, 523 registered voters chosen as a representative US sample deliberated for a long weekend near Dallas on immigration, the economy, health care, the environment and foreign policy. Compared with a control group, they moved closer together on most polarising proposals and grew warmer towards the other party.
- Anarcho-capitalismIdeologyA strand of market anarchism, associated with Murray Rothbard and David Friedman, that combines private property with privately supplied law and defence.
- Anarcho-communismIdeologyThe anarchist tradition, associated above all with Peter Kropotkin, that seeks to abolish the state, private property in the means of production, money and wage labour in favour of federated free communes distributing goods 'from each according to ability, to each according to needs'.
- Anarcho-syndicalismIdeologyAn anarchist current that sees revolutionary trade unions as both the means of struggle and the cell of a stateless, self-managed economy. Its main historical expression was Spain's CNT, founded in 1910.
- Andorra's co-principalityExperimentA Pyrenean micro-state whose heads of state are two co-princes, the Bishop of Urgell in Catalonia and the President of France, under arrangements dating from 1278. Since the 1993 Constitution, sovereignty rests with the people and power with an elected parliament and government.
- Approval votingMechanismA voting method in which each voter may approve of as many candidates as they wish and the candidate with the most approvals wins. Used in city elections in Fargo (2020–2024) and St. Louis (since 2021).
- ArbitrationMechanismParties submit a dispute to one or more privately chosen arbitrators whose award is binding.
- Arend LijphartThinkerDutch-born American political scientist who developed the theory of consociational democracy and compared majoritarian and consensus models of democracy.
- AristotleThinkerGreek philosopher whose Politics classified constitutions by who rules and whether they rule for the common advantage; a founding text of comparative political analysis and the mixed constitution.
- Athenian democracy (Classical Athens)ExperimentThe direct democracy of Classical Athens, c. 508/7–322 BCE: an Assembly open to male citizens, a Council of 500 and many offices filled by lot, large lot-selected people's courts and ostracism. Women, slaves and resident foreigners had no political rights.
- Audrey TangThinkerCivic hacker from the g0v community; served as Taiwan's digital minister from 2016 to 2024.
- AurovilleExperimentAn intentional township founded in 1968 near Puducherry in Tamil Nadu, India, intended as a 'universal town' for people of all nations.
- Autonomous Administration of North and East Syria (Rojava)ExperimentKurdish-led self-administration in north-eastern Syria, de facto autonomous from 2012 and organised on 'democratic confederalism'. Its autonomy was never recognised by Damascus; the dissolution of the SDF and integration into state structures was announced in August 2026.
- Autonomous regionInstitution typeA territory within a state granted special, usually entrenched self-government, often with its own legislature and powers over language, culture or resources, to accommodate a distinct population. Examples include Åland, South Tyrol, Greenland, Aceh and Bougainville; critics see autonomy as a possible step to secession.
- Autonomous Region of Bougainville (Papua New Guinea)ExperimentA post-conflict autonomy created by the 2001 Bougainville Peace Agreement after a decade of war over the Panguna mine and self-determination. In a 2019 referendum about 98 per cent of valid votes favoured independence; the result still awaits ratification by Papua New Guinea's parliament.
- Balaji SrinivasanThinkerEntrepreneur and investor; author of The Network State (2022).
- Bali subak irrigation systemExperimentBalinese farmers' associations (subaks) that share water from common weirs and coordinate planting through a network of water temples. Lansing showed that temple-level scheduling balances water supply against pest control; the system survived a Green Revolution conflict and was listed by UNESCO in 2012.
- Basque Concierto Económico (fiscal autonomy)ExperimentSpain's Basque Country collects and regulates most of its own taxes through its three historical territories and pays the State a negotiated quota (cupo) for services it does not provide. Dating from 1878 and renewed in 1981 and 2002, it is one of Europe's strongest regional fiscal autonomies.
- Bellicist theory of state formationTheoryCharles Tilly's argument that in early modern Europe war made the state and the state made war: the need to fund armies forced rulers to tax, borrow and build bureaucracies. Influential for Europe, it travels poorly to Africa and Latin America, and economic rivals dispute its causal priority.
- Better Reykjavik (Betri Reykjavík, since 2010)ExperimentAn online platform where residents propose, argue and rank ideas; since 2011 the highest-ranked ideas are sent monthly to Reykjavik city council committees, which must process and answer them.
- Bologna Regulation on urban commons (since 2014)ExperimentA 2014 municipal regulation that lets residents and groups sign 'collaboration pacts' with the City of Bologna to care for and regenerate public spaces and buildings as commons. Based on the constitutional principle of horizontal subsidiarity, it has been copied by over 300 Italian municipalities, with more than 8,000 pacts signed nationally.
- British Columbia Citizens' Assembly on Electoral Reform (2004)ExperimentA 160-member randomly selected assembly, plus a chair, that studied electoral systems in 2004 and recommended BC-STV. Two referendums followed; neither reached the legislated thresholds.
- Brook FarmExperimentA communal farm and school at West Roxbury, Massachusetts (1841–1847), founded by George Ripley with transcendentalist ideals as a joint-stock company and converted in 1844 to a Fourierist association. Debt and a fire ended it.
- Bruce L. BensonThinkerEconomist who argued that law can be, and historically often was, produced without the state.
- Brussels Parliament mixed deliberative committees (since 2019)ExperimentSince December 2019 the Brussels regional parliament and the French-speaking Brussels parliament can form committees in which 45 citizens drawn by lot sit with 15 MPs (36 and 12 in the francophone body) to draft recommendations. Six had been held by 2024; MPs must report on follow-up within six months.
- Bundestag citizens' assembly on nutrition (Bürgerrat Ernährung, 2023–2024)ExperimentThe first citizens' assembly commissioned by the German Bundestag itself: 160 residents aged 16 or over, drawn by a public lottery, deliberated from September 2023 to January 2024 on food policy. Its nine recommendations, led by free school lunches for all children, were debated in March 2024 but are not binding.
- Carole PatemanThinkerBritish political theorist whose Participation and Democratic Theory (1970) revived participatory democracy against elitist theories, whose The Sexual Contract (1988) argued that the social contract presupposes a hidden contract of male domination, and who has advocated basic income.
- Champlain Housing TrustExperimentA community land trust in Burlington, Vermont, that began in 1984 and keeps homes affordable through resale restrictions.
- Charles TieboutThinkerEconomist whose 1956 model described residents 'voting with their feet' among local jurisdictions.
- Charter cityInstitution typeA new city on largely uninhabited land, governed by a charter whose rules differ from those of the host country — a concept proposed by Paul Romer in 2009.
- Cherán K'eri communal self-government (Michoacán, Mexico)ExperimentA Purépecha town in Michoacán that rose against illegal logging and organised crime in 2011, expelled political parties and won in court the right to govern itself by its own customs. A council of twelve elders chosen in neighbourhood assemblies has run the municipality since 2012.
- Citizens' Assembly of Scotland (2019–2021)ExperimentA government-commissioned assembly of 104 randomly selected residents that met from October 2019 to December 2020 on what kind of country Scotland should be. Boycotted by unionist parties as a perceived independence vehicle, it produced 60 recommendations; the government answered in November 2021.
- Citizens' initiative reviewMechanismA randomly selected panel of about two dozen voters studies a ballot measure for several days and writes a one-page statement of key findings and best arguments for and against, distributed to all voters. Developed in Oregon, made permanent there in 2011, and piloted in other US states and Switzerland.
- Citizenship and membershipConceptFull membership of a political community, combining legal status, rights and duties, and participation. Acquired by birth on the territory (jus soli), by descent (jus sanguinis) or by naturalisation, citizenship is contested at its edges: denizens, stateless persons, dual nationals and investor citizens.
- City-stateInstitution typeA self-governing political community centred on a single city and its hinterland, outside any larger state. Common from Sumer and the Greek poleis to the Italian republics and Hanseatic cities; today Singapore, Monaco and the Vatican are sovereign city-states, and Hamburg and Bremen are city-states within Germany.
- CityDAOExperimentA DAO organised as a Wyoming DAO LLC in 2021 that bought a 40-acre parcel in Wyoming and governed it through NFT-weighted votes; in May 2024 members voted to return the treasury to NFT holders.
- Civic republicanismIdeologyA political tradition that treats freedom as self-government and non-domination, sustained by active citizens, civic virtue and mixed institutions. Rooted in Rome, Florence and Venice, and revived by Pettit and Skinner.
- Climate Assembly UK (2020)ExperimentA citizens' assembly of 108 randomly selected UK residents, commissioned by six House of Commons select committees, that met over six weekends in 2020 and set out how the UK should reach net zero by 2050. Its report was advisory; the government never gave the point-by-point response MPs asked for.
- Collective Constitutional AI (Anthropic and CIP, 2023)ExperimentAn experiment in which about 1,000 representative Americans used the Polis platform to draft principles for an AI chatbot. Anthropic trained a model on the resulting public constitution and compared it with one trained on its own; the public model was less biased on a standard benchmark and equally capable.
- Commons governanceConceptManagement of shared resources by their users through locally devised rules, rather than by privatisation or central state control.
- CommuneInstitution typeA self-governing local community: the medieval sworn town and today's basic municipality in France and Italy, the revolutionary city council of the Paris Commune (1871), or a settlement sharing property and labour. State-imposed communes, such as China's in 1958–1984, had disastrous results.
- CommunitarianismIdeologyA school of political thought, prominent from the 1980s, that criticises liberal individualism for neglecting how communities form persons, and argues for the common good, civic virtue, social responsibility and the strengthening of families, localities and civil society alongside rights.
- Community land trustMechanismA nonprofit holds land in trust and sells or leases the buildings on it with resale limits that keep housing affordable.
- Condorcet methodsMechanismRanked-ballot voting methods that elect the candidate who beats every rival in head-to-head majority comparisons, when one exists, and differ in how they resolve cycles. Used mainly in organisations such as the Debian Project.
- ConfederationInstitution typeA union of sovereign states that delegate defence, foreign affairs or trade to joint institutions acting mainly on member governments, usually with unanimity on key decisions and a right of exit. Examples include the Haudenosaunee, the US under the Articles (1781–1789) and the German Confederation.
- ConservatismIdeologyThe political disposition and tradition that distrusts abstract, rationalist plans for reconstructing society, values inherited institutions, customs and authority as stores of practical wisdom, and favours gradual reform over revolution.
- ConsociationalismTheoryArend Lijphart's theory that deeply divided societies can sustain democracy through elite power-sharing: grand coalition, mutual veto, proportionality and segmental autonomy. Associated with Lebanon, Belgium, Northern Ireland and Bosnia.
- Constitutional political economyTheoryThe economic study of rules, founded by Buchanan and Tullock's The Calculus of Consent (1962): constitutions are judged by whether individuals could agree to them as the framework for later political choice.
- ConstitutionalismConceptThe doctrine that political power should be limited by a higher law that binds rulers and is harder to change than ordinary legislation. Having a written constitution does not by itself guarantee it.
- Cooperative ownershipMechanismAn enterprise owned and democratically controlled by its members — workers, consumers or residents — usually one member, one vote.
- Cosmopolitan democracyExperimentA model of global democracy associated with David Held and Daniele Archibugi (1995) that adds regional and global democratic institutions, notably a world parliamentary assembly, without abolishing states. Only campaigns exist, not a global assembly.
- DAO (decentralised autonomous organisation)Institution typeAn organisation whose rules and treasury are encoded in smart contracts on a blockchain, usually governed by token-holder votes.
- Data commons and data governanceConceptArrangements in which data are pooled and governed as a shared resource by a community, under rules about access, use and benefit, rather than held exclusively by firms or states. Includes data cooperatives, data trusts, open-data commons and Indigenous data sovereignty.
- David D. FriedmanThinkerEconomist who made the consequentialist case for anarcho-capitalism in The Machinery of Freedom (1973).
- David GraeberThinkerAmerican anthropologist and anarchist activist known for Debt: The First 5,000 Years (2011), critiques of bureaucracy and work, and a leading role in the Occupy movement.
- Debian Project constitutionExperimentThe volunteer Debian operating-system project has governed itself since 1998 under a written constitution: developers elect a Project Leader each year, a Technical Committee settles technical disputes, and general resolutions use ranked Condorcet-style voting with supermajorities for foundational changes.
- Decide Madrid and the Consul software (since 2015)ExperimentMadrid City Council's online participation platform, launched in 2015, combining proposals, debates, polls and participatory budgeting. Its open-source software, Consul, is reused by many other public bodies.
- Decidim BarcelonaExperimentBarcelona City Council's open-source participation platform, launched in 2016 and now used by many public bodies.
- Deliberative democracyConceptThe view that democratic legitimacy depends on informed public deliberation, often organised through randomly selected mini-publics.
- Deliberative legitimacyTheoryThe view that collective decisions are legitimate to the extent that free and equal citizens could accept them after public deliberation, rather than merely because preferences were aggregated.
- Deliberative pollingMechanismA random sample of citizens is surveyed, given balanced information, deliberates with experts and in small groups, and is surveyed again; the change is presented as considered public opinion. Devised by James Fishkin; first run in the UK in 1994 and required by law for constitutional amendments in Mongolia since 2017.
- DemarchyExperimentJohn Burnheim's 1985 proposal to replace elections and multi-purpose territorial states with many specialised functional bodies whose members are chosen by lot from those affected. Never implemented.
- DemocracyNextorganisationInternational research and action institute, registered as a Dutch foundation, that promotes citizens' assemblies and other institutions based on sortition, deliberation and rotation, and advises governments on making them permanent.
- Democratic confederalismIdeologyAbdullah Öcalan's programme of stateless self-government through local communes and councils federated across ethnic and religious lines, drawing on Murray Bookchin. Applied in Rojava (northeast Syria), whose status changed in 2025–2026.
- Digital identityMechanismA government- or community-issued credential that lets people authenticate and sign electronically.
- Digital statehoodConceptDelivery of core state functions — identity, registries, services — through digital infrastructure, sometimes to people outside the territory.
- DistributismExperimentAn economic and social programme developed by G. K. Chesterton and Hilaire Belloc, drawing on Catholic social teaching, that would spread productive property widely among families and small enterprises. No state has adopted it as an economic system.
- Douglass NorthThinkerAmerican economic historian who defined institutions as the humanly devised 'rules of the game', explained long-run economic performance by institutional change and path dependence, and shared the 1993 Nobel memorial prize in economics.
- Dubai International Financial Centre (DIFC)ExperimentA financial free zone established in 2004 with its own civil and commercial laws and English-language common-law courts, inside the civil-law UAE.
- Dutch Republic (Republic of the Seven United Provinces)ExperimentA confederation of seven sovereign provinces (1579/1588–1795) governed by a States General voting by province, provincial States dominated by urban regents, and stadtholders from the House of Orange. It became Europe's leading commercial power and a haven of relative religious toleration, but its unanimity rules and factional strife were notorious.
- E. Glen WeylThinkerEconomist; developed quadratic voting and co-authored Radical Markets (2018) with Eric Posner.
- Economic democracyConceptThe extension of democratic principles from government to the economy: workers or citizens share control of firms, investment and economic policy. Forms include worker co-operatives, board-level codetermination, wage-earner funds and participatory planning.
- Elinor OstromThinkerPolitical economist who showed how communities govern common-pool resources; shared the 2009 Nobel Memorial Prize in Economic Sciences.
- Elite theoryTheoryThe theory, from Mosca, Pareto and Michels to C. Wright Mills, that every society is ruled by an organised minority whatever its formal constitution. Pluralists such as Dahl contested it; recent work on unequal policy responsiveness has revived it.
- ENS DAO (Ethereum Name Service)ExperimentThe decentralised autonomous organisation that has governed the Ethereum Name Service and its treasury since November 2021. It is unusual for its five-article constitution protecting name owners, its elected working-group stewards, a Cayman foundation as legal wrapper and a time-limited Security Council that can only cancel malicious proposals.
- Epistemic democracyTheoryThe view that democracy is valuable partly because it tends to produce correct or good decisions. Supported by the Condorcet jury theorem and by models in which cognitive diversity beats individual ability; challenged by evidence of voter ignorance and by mathematical critiques of those models.
- EpistocracyExperimentDistribution of political power by competence or knowledge. Jason Brennan's Against Democracy (2016) argues for epistocratic options such as weighted voting by tested political knowledge. A theoretical proposal.
- Eric A. PosnerThinkerLegal scholar; co-author of Radical Markets (2018).
- Erik Olin WrightThinkerAmerican analytical Marxist sociologist who studied class structure and, through the Real Utopias Project, evaluated democratic egalitarian institutions such as participatory budgeting, co-operatives, Wikipedia and basic income by their desirability, viability and achievability.
- Estonia e-ResidencyExperimentA government-issued digital identity that lets non-residents use Estonian e-services, such as founding and running a company online.
- Estonian Internet voting (i-voting, since 2005)ExperimentRemote online voting for binding elections, offered nationwide in Estonia since the 2005 local elections; in 2023 just over half of participating voters cast their ballot online. Its security remains debated.
- Evergreen Cooperatives (Cleveland, Ohio)ExperimentNetwork of worker-owned businesses set up from 2008–09 in Cleveland's Greater University Circle with hospital and university anchor institutions as customers, aiming to build equity for low-income residents.
- Exit rightsMechanismThe guaranteed ability of members to leave a polity or organisation, ideally with defined treatment of their assets and obligations.
- Exit, voice and loyaltyTheoryHirschman's framework: members respond to decline by leaving (exit) or speaking up (voice); loyalty shapes the balance.
- FederalismConceptA system in which authority is constitutionally divided between a central government and regional governments, neither of which can unilaterally abolish the other. Examples include the United States, Switzerland and Germany.
- FederationInstitution typeA state in which sovereignty is constitutionally divided between a central government and constituent units, each acting directly on citizens. About 25 countries with some 40% of the world's population are federations, from the United States (1789) and Switzerland (1848) to India and Belgium.
- Free Territory (Makhnovshchina), UkraineExperimentAn anarchist-influenced peasant movement around Huliaipole, southern Ukraine, led by Nestor Makhno. Between late 1918 and 1921 it held territory, backed local soviets, communes and regional congresses, and fought Whites, nationalists and Bolsheviks.
- Freetown ChristianiaExperimentA self-governing neighbourhood in Copenhagen founded in 1971 in former military barracks, with decisions taken by consensus in common meetings.