Complete Index
Every experiment in the registry.
All 156 civic experiments across 28 countries, grouped by policy area. For filtering, sorting, and search, see the main registry. This page is a flat browsable index for quick reference and link sharing.
Tax & Revenue · 6 experiments
- IRS Direct File PilotInternal Revenue Service / US Digital Service · United States (12 pilot states) · 2024 · Positive
- Simplified Tax Penalty PaymentIndonesia Directorate General of Taxes · Indonesia · 2022 · Positive
- Fiscal Exchange Framing on Tax BillsArgentina Tax Authority (ARBA) · Argentina · 2020 · Positive
- Social Norm Tax LettersDominican Tax Authority (DGII) · Dominican Republic · 2019 · Positive
- Personalized SMS for Court Fine RepaymentUK Courts Service / Behavioural Insights Team · United Kingdom · 2012 · Positive
- EITC Expansion and Labor SupplyU.S. Treasury / NBER researchers · United States · 1993 · Positive
Basic Income · 6 experiments
- Stockton SEED — Guaranteed Income PilotUniversity of Tennessee / University of Pennsylvania EPRC · Stockton, CA, USA · 2019 · Positive
- Finland Basic Income ExperimentKela (Finnish Social Insurance Institution) · Finland · 2017 · Mixed
- GiveDirectly — Large-Scale Basic Income in Rural KenyaGiveDirectly / Princeton / MIT / UC Berkeley · Siaya County, Kenya · 2016 · Positive
- Manitoba Mincome — Guaranteed Annual IncomeUniversity of Manitoba / Canadian federal and Manitoba governments · Manitoba, Canada · 1974 · Positive
- Seattle/Denver Income Maintenance Experiment (SIME/DIME)SRI International / Mathematica / US Department of Health, Education, and Welfare · Seattle, Washington and Denver, Colorado, USA · 1971 · Mixed
- New Jersey Negative Income Tax ExperimentMathematica / Office of Economic Opportunity / University of Wisconsin Institute for Research on Poverty · Trenton, Paterson, Jersey City, and Passaic, New Jersey; and Scranton, Pennsylvania, USA · 1968 · Mixed
Benefits Enrollment · 8 experiments
- Flexible SNAP Interview SchedulingLos Angeles County Department of Public Social Services · Los Angeles, USA · 2022 · Positive
- Streamlined ACA Health Insurance EnrollmentMassachusetts Health Connector · Massachusetts, USA · 2021 · Positive
- UK Troubled Families Programme — National EvaluationUK Department for Communities and Local Government / Ipsos MORI · England, United Kingdom · 2017 · Null
- Automated Medicaid Renewal RemindersState of Rhode Island / Deloitte · Rhode Island, USA · 2016 · Positive
- SNAP Enrollment Information Letters for SeniorsPennsylvania Department of Human Services · Pennsylvania, USA · 2016 · Positive
- SNAP Enrollment Simplification — VermontVermont Dept. of Children and Families · Vermont, USA · 2014 · Positive
- New Hope Project — Milwaukee Earnings SupplementMDRC / New Hope Project · Milwaukee, WI, USA · 1994 · Mixed
- Self-Sufficiency Project — CanadaSocial Research and Demonstration Corporation (SRDC) · British Columbia and New Brunswick, Canada · 1992 · Mixed
Cash Transfers · 6 experiments
- Child Tax Credit 2021 Expansion (American Rescue Plan)US Treasury / Columbia University Center on Poverty and Social Policy / Brookings evaluation · United States (national) · 2021 · Positive
- Stockton SEED Guaranteed Income PilotSEED (Stockton Economic Empowerment Demonstration) · Stockton, CA, USA · 2021 · Positive
- Finland Universal Basic Income ExperimentKELA (Social Insurance Institution of Finland) · Finland · 2018 · Positive
- GiveDirectly Unconditional Cash TransfersGiveDirectly / MIT / Princeton · Western Kenya · 2011 · Positive
- New York City Family RewardsNYC Center for Economic Opportunity / MDRC · New York City, USA · 2007 · Mixed
- PROGRESA Conditional Cash TransferMexican government (SEDESOL) · Rural Mexico · 1997 · Positive
Energy & Environment · 7 experiments
- Green Investment Default in Retirement PlansNest (UK National Employment Savings Trust) · United Kingdom · 2020 · Positive
- Green Electricity Opt-Out DefaultGerman utility companies · Germany · 2016 · Positive
- Social Comparison Home Water ReportsMultiple US water utilities · United States (multi-site) · 2014 · Positive
- Solar Panel Adoption Peer EffectsYale University / Lawrence Berkeley National Laboratory · Connecticut, United States · 2014 · Positive
- Opower Home Energy ReportsOpower (now Oracle Utilities) / 12 US utilities · United States (multi-site) · 2012 · Positive
- Regional Greenhouse Gas Initiative (RGGI) — Cap-and-Trade EvaluationResources for the Future / Acadia Center / multiple academic evaluations · Northeastern United States (12 states) · 2009 · Positive
- British Columbia Carbon TaxProvince of British Columbia · British Columbia, Canada · 2008 · Positive
Education · 11 experiments
- Year Up Young Adult Job Training ProgramYear Up / Social Policy Research Associates / Harvard · United States · 2018 · Positive
- Chicago STAR Scholarship — Dual EnrollmentCity Colleges of Chicago / University of Chicago · Chicago, IL, USA · 2016 · Positive
- Seattle Later School Start Times — Natural ExperimentUniversity of Washington / Salk Institute · Seattle, WA, USA · 2016 · Positive
- Boston Charter School Lottery StudiesMIT (Joshua Angrist, Parag Pathak) / Harvard (Susan Dynarski) · Boston, Massachusetts, USA · 2009 · Positive
- Universal Free School Breakfast ProgramWelsh Assembly Government · Wales, UK · 2007 · Positive
- Harlem Children's Zone — Promise Academy Charter SchoolsHarvard University / Harlem Children's Zone · New York City, USA · 2004 · Positive
- National Job Corps StudyMathematica Policy Research (Schochet, Burghardt, Glazerman) · United States (national) · 1995 · Mixed
- Job Training Partnership Act (JTPA) National RCTMathematica Policy Research / US Department of Labor · United States · 1994 · Mixed
- Career Academies — MDRC Long-Term EvaluationMDRC · Multiple US cities · 1993 · Positive
- Project STAR — Small Class SizeTennessee Department of Education · Tennessee, USA · 1989 · Positive
- Tennessee STAR — Student/Teacher Achievement RatioTennessee Department of Education / SBER / Vanderbilt / Harvard · Tennessee, USA · 1985 · Positive
Early Childhood · 9 experiments
- Seattle Preschool Program RCTUniversity of Washington / City of Seattle · Seattle, WA, USA · 2017 · Positive
- UK Sure Start Local ProgrammesHM Government / Institute for Fiscal Studies · England, United Kingdom · 2010 · Positive
- Boston Public Pre-K ProgramHarvard Graduate School of Education (Weiland, Yoshikawa) · Boston, Massachusetts, USA · 2009 · Positive
- Tennessee Voluntary Pre-K Program (TN-VPK) — Randomized EvaluationVanderbilt University Peabody Research Institute (Lipsey, Farran, Hofer) · Tennessee, USA · 2009 · Negative
- Big Brothers Big Sisters — National Impact StudyPublic/Private Ventures · Multiple US cities · 1992 · Positive
- Jamaica Stunting Study — Stimulation + NutritionUniversity of the West Indies / World Bank · Kingston, Jamaica · 1986 · Positive
- Nurse-Family Partnership — Elmira TrialUniversity of Rochester / David Olds · Elmira, New York, USA · 1977 · Positive
- The Abecedarian ProjectUniversity of North Carolina at Chapel Hill / Frank Porter Graham Child Development Institute · Chapel Hill, NC, USA · 1972 · Positive
- Perry Preschool ProjectYpsilanti Public Schools / High/Scope Educational Research Foundation · Ypsilanti, Michigan, USA · 1962 · Positive
Libraries · 5 experiments
- Library Fine EliminationChicago Public Library · Chicago, USA · 2019 · Positive
- Library Fine Elimination — Return Rate ImpactSalt Lake City Public Library · Salt Lake City, USA · 2019 · Positive
- New York Public Library — Teen Learning Labs Impact StudyNew York Public Library / Brooklyn Public Library / Queens Public Library / Mathematica evaluation · New York City, USA · 2018 · Mixed
- Carnegie Library of Pittsburgh — SNAP Outreach PilotCarnegie Library of Pittsburgh / Allegheny County DHS / RAND Corporation evaluation · Pittsburgh, Pennsylvania, USA · 2017 · Positive
- Self-Selected Summer Books and Summer Reading LossUniversity of Tennessee / University of Virginia (Allington et al.) · Volusia County, FL; Charlottesville, VA; Rochester, NY (USA) · 2007 · Positive
Public Health · 20 experiments
- SMS Reminders for Childhood Vaccination — Meta-AnalysisSystematic review (international) · Global (multiple countries) · 2024 · Positive
- Ownership Framing for COVID-19 Booster UptakeUCLA Health / NIH-funded research · United States · 2022 · Positive
- COVID-19 Vaccination SMS RemindersRhode Island Department of Health · Rhode Island, USA · 2021 · Null
- Community-Level Mask Promotion — COVID-19Yale / Stanford research partnership with Bangladeshi NGOs · Bangladesh · 2020 · Positive
- India Swachh Bharat Mission — Open Defecation FreeWorld Bank / Research Institute for Compassionate Economics · India · 2018 · Mixed
- Clean Cookstove Adoption in Rural IndiaUniversity of Chicago / Harvard / IPA · India (Orissa state) · 2016 · Null
- Workplace Wellness Programs — Illinois RCTUniversity of Illinois / Harvard / National Bureau of Economic Research · University of Illinois, USA · 2016 · Null
- Camden Coalition Hotspotting RCTMIT J-PAL North America / Camden Coalition of Healthcare Providers · Camden, New Jersey, USA · 2014 · Null
- Mexico Sugar-Sweetened Beverage TaxMexican Ministry of Finance / Mexican Institute of Public Health (INSP) / University of North Carolina evaluation · Mexico (national) · 2014 · Positive
- Australia Plain Tobacco PackagingAustralian Government Department of Health / Cancer Council Victoria evaluation · Australia (national) · 2012 · Positive
- Vaccination Reminders and Incentives — IndiaJ-PAL / Seva Mandir · Rajasthan, India · 2010 · Positive
- Oregon Medicaid LotteryHarvard University / MIT / NBER · Oregon, USA · 2008 · Mixed
- Chlorine Dispensers at Water SourcesInnovations for Poverty Action / Evidence Action · Western Kenya · 2007 · Positive
- Organ Donation Opt-Out Defaults — Cross-National EvidenceJohnson & Goldstein (Columbia) / multiple national health ministries · Multiple countries (Europe) · 2003 · Positive
- Head Start Impact StudyUS Department of Health and Human Services · United States (nationally representative) · 2002 · Mixed
- IMPACT Collaborative Care for Late-Life DepressionUniversity of Washington / RAND / multiple health systems · United States · 2002 · Positive
- Mexico Seguro Popular — Health Insurance Coverage ExpansionHarvard School of Public Health / Mexican Ministry of Health · Mexico · 2002 · Mixed
- Diabetes Prevention Program (DPP)US National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) / 27 academic medical centers · United States (27 sites) · 1996 · Positive
- IPS Supported Employment for Severe Mental IllnessDartmouth Psychiatric Research Center / SAMHSA · Multiple US cities and international sites · 1996 · Positive
- RAND Health Insurance ExperimentRAND Corporation · Multiple US cities · 1971 · Mixed
Parks & Public Space · 2 experiments
Administrative Process · 6 experiments
- Online Permit System ImplementationBoone County, Illinois · Boone County, USA · 2021 · Positive
- Rental License Renewal — Behavioral MessagingCity of Philadelphia Licenses and Inspections Department · Philadelphia, USA · 2020 · Positive
- Business Permit Processing StreamliningCity of Phoenix, Dept. of Planning and Development · Phoenix, AZ, United States · 2019 · Positive
- Foreclosure Prevention — Administrative Burden ReductionUS mortgage assistance program (HAMP-era evaluation) · United States · 2018 · Positive
- SMS Wait Time Notifications for NHS AppointmentsNHS England / Behavioural Insights Team · England, United Kingdom · 2012 · Positive
- Porto Alegre Participatory BudgetingCity of Porto Alegre / researchers at University of Brasilia · Porto Alegre, Brazil · 1989 · Positive
Voter Engagement · 9 experiments
- Voter Registration SMS — Local AuthoritiesUK Electoral Commission / Local authorities · United Kingdom · 2022 · Positive
- Ranked Choice Voting — New York City 2021 Mayoral PrimaryNew York City Board of Elections / Common Cause / Rank the Vote NYC · New York City, USA · 2021 · Mixed
- Voter Registration Postcards to Unregistered Eligible CitizensState election agencies (two states) · United States · 2019 · Positive
- Automatic Voter Registration — OregonOregon Secretary of State · Oregon, United States · 2016 · Positive
- Colorado Universal Vote-by-MailStanford Healthy Elections Project / University of Colorado Denver · Colorado, USA · 2013 · Positive
- Text Message Get-Out-the-Vote CampaignsStanford / Yale / IPA (Malhotra, Michelson, Rogers, Valenzuela and others) · California and multiple US states · 2011 · Positive
- Michigan Social Pressure Voting MailerUniversity of Michigan / Yale University · Michigan, USA · 2006 · Positive
- Door-to-Door GOTV Canvassing — New HavenYale University (Green & Gerber) · New Haven, CT, USA · 2000 · Positive
- Oregon Universal Vote by MailOregon Secretary of State / Caltech/MIT Voting Technology Project · Oregon, USA · 2000 · Positive
Housing · 8 experiments
- Emergency Rental Assistance Program (ERAP) — COVID-19 ResponseUS Treasury Department / Urban Institute / National Low Income Housing Coalition evaluation · United States (national) · 2021 · Positive
- Philadelphia Eviction Right to CounselPhiladelphia Eviction Prevention Project / PHLC · Philadelphia, PA, USA · 2019 · Positive
- Inclusionary Zoning Affordability AuditCity of Chicago, Dept. of Housing · Chicago, IL, United States · 2018 · Positive
- Right to Counsel — NYC Eviction Court Legal RepresentationNYC Office of Civil Justice / Furman Center for Real Estate and Urban Policy · New York City, USA · 2017 · Positive
- Denver Social Impact Bond — Supportive Housing for Chronic HomelessnessCity of Denver / Colorado Coalition for the Homeless · Denver, CO, USA · 2016 · Positive
- Rapid Re-Housing vs. Transitional HousingColumbus Metropolitan Housing Authority · Columbus, OH, United States · 2016 · Positive
- At Home / Chez Soi — Housing FirstMental Health Commission of Canada · Vancouver, Winnipeg, Toronto, Montréal, Moncton, Canada · 2009 · Positive
- Moving to Opportunity Housing VouchersUS Department of Housing and Urban Development (HUD) · Baltimore, Boston, Chicago, Los Angeles, New York · 1994 · Mixed
Public Safety · 23 experiments
- Minneapolis Foot Patrol ExperimentMinneapolis Police Department / George Mason University · Minneapolis, MN, USA · 2019 · Positive
- Body-Worn Camera RCT — Washington DCMetropolitan Police Department / George Mason University · Washington, DC, USA · 2016 · Null
- Police Body-Worn Cameras — Washington DC Randomized TrialThe Lab @ DC / Metropolitan Police Department · Washington, DC, USA · 2016 · Null
- Ban the Box Employment PolicyNew York City Commission on Human Rights · New York City, NY, United States · 2015 · Mixed
- Becoming a Man (BAM) — Cognitive Behavioral TherapyUniversity of Chicago Crime Lab / Youth Guidance · Chicago, IL, USA · 2015 · Positive
- Court Date SMS Reminders to Reduce Failure to AppearCity of New York / ideas42 · New York City, NY, United States · 2015 · Positive
- Pretrial Risk Assessment Tool (Arnold Foundation)Laura and John Arnold Foundation · United States (multiple jurisdictions) · 2014 · Mixed
- Chicago One Summer Plus — Summer Jobs and Violence ReductionUniversity of Chicago Crime Lab / City of Chicago · Chicago, IL, USA · 2012 · Positive
- Cognitive Behavioral Therapy for Juvenile OffendersUniversity of Chicago Crime Lab · Chicago, IL, United States · 2012 · Positive
- LEAD — Law Enforcement Assisted Diversion (Seattle)Seattle Police Department / King County Prosecuting Attorney / Public Defender Association / Vera Institute / University of Washington evaluation · Seattle, Washington, USA · 2011 · Positive
- Becoming a Man (BAM) — Cognitive Behavioral Therapy for At-Risk YouthUniversity of Chicago Crime Lab · Chicago, IL, USA · 2009 · Positive
- Philadelphia Foot Patrol ExperimentTemple University / Philadelphia Police Department · Philadelphia, USA · 2009 · Positive
- Hawaii's Opportunity Probation with Enforcement (HOPE)First Circuit Court, State of Hawaii / RAND Corporation · Honolulu, HI, USA · 2004 · Positive
- Cure Violence — ChicagoUniversity of Illinois at Chicago / Chicago Department of Public Health · Chicago, USA · 2000 · Mixed
- Cure Violence / Group Violence Intervention — Community Violence InterruptionUniversity of Illinois Chicago / National Network for Safe Communities (John Jay) · Multiple US cities · 2000 · Mixed
- Drug Courts — Randomized Trial Evidence BaseNational Institute of Justice / RAND Corporation / multiple jurisdictions · Multiple US cities · 1997 · Positive
- Boston Ceasefire — Group Violence InterventionBoston Police Department / Harvard Kennedy School · Boston, MA, USA · 1996 · Positive
- Philadelphia Hot Spots PolicingPhiladelphia Police Department / Lawrence Sherman / Jerry Ratcliffe · Philadelphia, USA · 1995 · Positive
- Kansas City Gun Experiment — Directed Hot-Spots PatrolUniversity of Maryland / Kansas City Police Department · Kansas City, MO, USA · 1992 · Positive
- D.A.R.E. — Drug Abuse Resistance EducationLos Angeles Police Department / Purdue University / multiple evaluators · Multiple US cities · 1983 · Null
- Scared Straight — Juvenile Awareness ProjectRahway State Prison / Rutgers University · New Jersey, USA · 1976 · Negative
- Kansas City Preventive Patrol ExperimentKansas City Police Department / Police Foundation · Kansas City, USA · 1972 · Null
- Cambridge-Somerville Youth StudyHarvard University (Richard Clark Cabot) — followed up by Joan McCord · Cambridge & Somerville, Massachusetts, USA · 1939 · Negative
Financial Services · 10 experiments
- Buy-Now-Pay-Later SMS Late Payment ReductionAFM (Dutch Authority for the Financial Markets) + Riverty · Netherlands · 2024 · Positive
- Year Up Job Training EvaluationMDRC / Year Up · United States (multiple cities) · 2018 · Positive
- M-Pesa Mobile Money and Poverty ReductionMIT / IGC / Safaricom · Kenya · 2016 · Positive
- Seattle Minimum Wage StudyUniversity of Washington · Seattle, WA, United States · 2016 · Mixed
- Financial Coaching for Low-Income AdultsConsumer Financial Protection Bureau / MDRC · United States (multiple cities) · 2015 · Positive
- Personalized Loan Repayment SMS RemindersMicroenterprise Access to Banking Services (MABS) + rural banks · Philippines · 2013 · Mixed
- Commitment Savings Accounts for Agricultural WorkersIPA / Equity Bank Kenya · Kenya · 2008 · Positive
- Save More Tomorrow (SMarT) Commitment ProgramUniversity of Chicago / Bernartzi & Thaler · United States · 2004 · Positive
- SEED Commitment Savings Account — PhilippinesYale University / IPA (Ashraf, Karlan, Yin) · Mindanao, Philippines · 2004 · Positive
- 401(k) Auto-Enrollment and Save More TomorrowUniversity of Chicago / University of California Berkeley · Multiple US companies · 1998 · Positive
Transportation · 6 experiments
- 5p Plastic Bag ChargeUK Department for Environment, Food & Rural Affairs · England, UK · 2015 · Positive
- London Cycle Hire Health OutcomesTransport for London / London School of Hygiene · London, UK · 2012 · Positive
- Milan Area C Congestion ChargePolitecnico di Milano / Municipality of Milan · Milan, Italy · 2012 · Positive
- Stockholm Congestion Pricing TrialSwedish Transport Agency · Stockholm, Sweden · 2006 · Positive
- London Congestion ChargeTransport for London · London, UK · 2003 · Positive
- Bogotá TransMilenio BRT SystemDistrito Capital de Bogotá · Bogotá, Colombia · 2000 · Positive
International Development · 14 experiments
- Impact of Microcredit — MexicoCompartamos Banco / MIT / Innovations for Poverty Action · Rural Mexico · 2015 · Mixed
- Rwanda Land Tenure Regularization ProgramWorld Bank (Ali, Deininger, Goldstein) · Rwanda · 2011 · Positive
- Rwanda Performance-Based Financing for HealthWorld Bank / Ministry of Health Rwanda · Rwanda · 2010 · Positive
- Village Savings and Loan Associations — AfricaCARE International / Freedom from Hunger · Sub-Saharan Africa (multiple countries) · 2010 · Positive
- South Africa Child Support GrantSouth African Social Security Agency / World Bank · South Africa · 2009 · Positive
- Ethiopia Productive Safety Net ProgrammeWorld Bank / Ethiopian Government · Ethiopia · 2008 · Positive
- BRAC Graduation ProgrammeBRAC / MIT / multiple governments · Bangladesh (original); replicated in 10 countries · 2007 · Positive
- Brazil Bolsa Família Conditional Cash TransferWorld Bank / IPEA / Brazilian Ministry of Social Development · Brazil · 2007 · Positive
- Kenya Girls' Primary School Merit Scholarship ProgramMIT Poverty Action Lab (Duflo, Dupas, Kremer) · Western Kenya · 2004 · Positive
- Kenya Insecticide-Treated Bednet DistributionIPA / Harvard / MIT · Western Kenya · 2003 · Positive
- India Midday Meal SchemeIndian Central Government / State governments · India (national, with state variation) · 2002 · Positive
- The Balsakhi Tutoring ProgramMIT Poverty Action Lab (Banerjee, Cole, Duflo, Linden) · Vadodara and Mumbai, India · 2002 · Positive
- Colombia Familias en AcciónColombian government / Inter-American Development Bank · Rural Colombia · 2001 · Positive
- Primary School Deworming — KenyaICS / MIT Poverty Action Lab · Western Kenya · 1998 · Positive