Harvard Institute for Quantitative Social Science

Harvard's home for social science research.

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[Harvard Institute for Quantitative Social Science @IQSS]

How will the November midterms shake out?

IQSS director Gary King (@kinggary), IQSS research associate @DannyCEbanks, and @CalTech professor @Jonathan_N_Katz built an interactive forecast for US Congressional seats on the ballot.

https://t.co/MMF0vFXAHT

#Elections #USPolitics

[Harvard Institute for Quantitative Social Science @IQSS]

OpenDP Library v0.16.0 is now available (@opendp_org), with new functionality, expanded documentation and smoother onboarding for new contributors.

https://t.co/DTwXbWk6Bs

#DifferentialPrivacy #OpenSource #ResearchData

[Harvard Institute for Quantitative Social Science @IQSS]

Support for single-payer health care is rising. IQSS affiliate David Cutler (@cutler_econ) examines what #MedicareforAll would actually require, writing in @JAMAHealthForum.

https://t.co/bqK2cfWtIL

#HealthPolicy #Economics #PublicHealth

[Harvard Institute for Quantitative Social Science @IQSS]

IQSS affiliate @BenSchneer finds voters historically respond to the individual candidate, not the name above them on the ballot, but that seems to be changing.

https://t.co/7cEyJYorhL

#AmericanPolitics #Elections

[Harvard Institute for Quantitative Social Science @IQSS]

What does holding a grudge cost you?

Tyler VanderWeele, faculty director of the Human Flourishing Program at IQSS (@HFHarvard), tells @CBSNews how forgiveness has measurable benefits.

https://t.co/3bflqJTNs5

#Flourishing #Psychology #PublicHealth

[Harvard Institute for Quantitative Social Science @IQSS]

Why hasn’t AI triggered mass layoffs?

IQSS affiliate Raffaella Sadun (@raffasadun) weighs in on why adopting AI has not yet meant the job losses many predicted.

https://t.co/KsJavLdXJz

#AI #FutureOfWork #Harvard

[Harvard Institute for Quantitative Social Science @IQSS]

Thursday at 3pm: @AdamBerinsky examines whether LLMs can shift voter attitudes, presenting “Persuasion through the use of human–artificial intelligence dialogues” at this week’s Alesina Seminar.

https://t.co/QtOJQb7Hcd

#PoliticalEconomy #AI #Elections

[Harvard Institute for Quantitative Social Science @IQSS]

US homeownership rates have held steady since 1970. The geography has not.

@HarvardCGA researchers Connie Chen, SV Subramanian, and coauthors map growing regional disparities in homeownership and housing growth, 1970–2020.

https://t.co/k3x98lFeTP

#GeographicAnalysis #Housing

[Harvard Institute for Quantitative Social Science @IQSS]

Dataverse 6.12 is now available, with new API capabilities, performance and security improvements, and a range of bug fixes.

https://t.co/jq2GPqBPnr

#Dataverse #ResearchData #OpenData #OpenScience

[Harvard Institute for Quantitative Social Science @IQSS]

Of 435 congressional seats, only about 30 to 35 are genuinely competitive. IQSS affiliate Kosuke Imai tells @HarvardGSAS how gerrymandering and residential sorting are narrowing the 2026 midterm map.

https://t.co/bnKwVAuQ13

#Gerrymandering #AmericanPolitics #PoliticalScience

[Harvard Institute for Quantitative Social Science @IQSS]

Can a written “constitution” keep bias out of AI? At a recent @BKCHarvard discussion. IQSS affiliate Mahzarin Banaji (@banaji) described how she has seen persistent gender bias from LLMs in her research.

https://t.co/ngRUR7acyu

#AI #ImplicitBias #MachineLearning

[Harvard Institute for Quantitative Social Science @IQSS]

Friday and Saturday: @HarvardCGA turns 20, marking the anniversary with two days of keynotes, panels, and workshops on where spatial research goes next.

https://t.co/1aXfmDvaUg

#GIS #GeographicAnalysis #SpatialData

[Harvard Institute for Quantitative Social Science @IQSS]

Thursday at 3pm: Marco Tabellini (@HarvardHBS) examines how salt taxes and trade levies fed unrest before 1789, presenting “Extractive Taxation and the French Revolution” at this week’s Alesina Seminar.

https://t.co/I3Ru6gfPFl

#PoliticalEconomy #EconomicHistory #Harvard

[Harvard Institute for Quantitative Social Science @IQSS]

Wednesday at 12 noon: Aleksandra Conevska presents “Electoral Accountability and Industrial Change: Regulator Selection and Alternative Energy Growth” at the #AppliedStatistics Workshop.

https://t.co/dutyesL320
#Harvard #Elections #Energy

[Harvard Institute for Quantitative Social Science @IQSS]

Thursday at 3pm: @StephenChaudoin looks at international law and trustworthy sources, presenting "Persuasion and Backlash from International Law in Global Swing States" at this week's Alesina Seminar.

https://t.co/GBJq6ei2bP
#politicaleconomy #International Relations #ICC

[Harvard Institute for Quantitative Social Science @IQSS]

Wednesday at 12pm: the #AppliedStats Workshop continues with @GregLanzalotto, who presents "Estimating Unreported and Unobservable Uses of Force Using Police Body-Worn Camera Data."

https://t.co/qzRwq3GlfK
#Harvard #UPenn #BWC #DataAnalysis

[Harvard Institute for Quantitative Social Science @IQSS]

Thursday at 3pm: Magdalena Larreboure examines how commercial water rights affect streamflow and protests in “Water Allocation and Social Unrest: Evidence from Chilean Water Rights” at the Alesina Seminar.

https://t.co/Miha00j2Os
#PoliticalEconomy #ClimateResearch #WaterPolicy

[Harvard Institute for Quantitative Social Science @IQSS]

The Center for Geographic Analysis conference will be held October 2–3, 2026, at the Rubenstein Treehouse at Harvard. Check out the preliminary program and other details at the link—there's still time to register!

https://t.co/BaShtngInK
#GIS #GeographicAnalysis #SpatialData

[Harvard Institute for Quantitative Social Science @IQSS]

Wednesday at 12pm: in this week's #AppliedStats workshop, Tymon Słoczyński introduces practical tools for evaluating weighted estimands with "Quantifying the Internal Validity of Weighted Estimands."

https://t.co/VpQO89EP4S
#CausalInference #Statistics #QuantitativeMethods

[Harvard Institute for Quantitative Social Science @IQSS]

Starting at 12pm: Jerry Min, drawing on enforcement and ownership data from 2.4 million U.S. plants, examines whether regulators subject foreign- and out-of-state-owned firms to greater scrutiny.

https://t.co/Q0NjZ3yXbt

#AmericanPolitics #PoliticalScience #ResearchWorkshop