Cass Sunstein
@CassSunstein

Robert Walmsley University Professor, Harvard; former Administrator, White House Office of Information and Regulatory Affairs; coauthor, NUDGE.

Joined December 2012
519 Photos and videos
New book: THE PRICE OF HAPPINESS. Just out, now available. amazon.com/Price-Happiness-B…

The Price of Happiness: Behavioral Economics and Willingness to Pay

People often 'miswant.' They buy goods that do not make them happy and refuse to buy goods that would make their lives better. In The Price of Happiness, Cass R. Sunstein focuses on people's 'willi...

amazon.com
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Honored to report that On Not Being Trapped in Amber will appear in the Duke Journal of Constitutional Law and Public Policy papers.ssrn.com/sol3/papers.…
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Cass Sunstein retweeted
Lawrence Solum
@lsolum
Sep 23
Sunstein on Not Being “Trapped in Amber”: legaltheoryblog.com/?p=11381…

Sunstein on Not Being “Trapped in Amber”

Cass R. Sunstein (Harvard Law School; Harvard University – Harvard Kennedy School (HKS)) has posted On Not Being “Trapped in Amber” on SSRN.  Here is the abstract: In United States …

legaltheoryblog.com
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Cass Sunstein retweeted
Lawrence Solum
@lsolum
Sep 24
Sunstein on Interpretation Is Many Things: legaltheoryblog.com/?p=11381…

Sunstein on Interpretation Is Many Things

Cass R. Sunstein (Harvard Law School; Harvard University – Harvard Kennedy School (HKS)) has posted Interpretation Is Many Things on SSRN.  Here is the abstract: The word “interpret…

legaltheoryblog.com
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Commentary Magazine
@Commentary
Sep 24
Harvard professor Cass Sunstein is a liberal, not a progressive, but he has come to make a first-principles case for a robust conception of the separation of powers. commentary.org/articles/tal-…

Separation Anxiety

The late Supreme Court Justice Antonin Scalia enjoyed tempering Americans’ obsession with the Bill of Rights. “It is a mistake to think that the Bill of Rights is the defining, or even the mo...

commentary.org
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Cass Sunstein retweeted
Kip Viscusi@WKipViscusi
Sep 24
The open access early view of my Dec. 2026 JRU article, The Value of a Statistical Life Year, is now available at rdcu.be/LFF2NJzVduwa. These new estimates can improve and sometimes correct @benefitcost valuations for situations involving short life extensions.
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Hono(u)red to be speaking at @LSE in a week! lse.ac.uk/events/social-medi…

Do social media platforms make people happier? | Cass R Sunstein

6:30pm Wed 30 Sept 2026 | Cass R Sunstein | Ticket Required | Free public event at LSE

lse.ac.uk
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This is fantastic news! @sherifgirgis
Sherif Girgis
@sherifgirgis
Sep 21
Professional update: This spring, I will join @Harvard_Law School’s faculty as a tenured professor, teaching constitutional law, jurisprudence, and related subjects. 1/11
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New paper (in draft): The Moral Obligations of Government Lawyers. @jacklgoldsmith @lsolum #KindOfASermon #SorryNotSorry papers.ssrn.com/sol3/papers.…
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Galleys have arrived!
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Cass Sunstein retweeted
Luis Botello-Moncada
@LuisBotelloM
Sep 21
Great book 🚀. Among other fundamental insights, @CassSunstein examines: 1. The importance of the separation of powers in sustaining deliberative democracies, 2. How information asymmetries and disparities in technical knowledge may render the executive the most dangerous branch. 👇🚀
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Do Animals Matter? The Benefits of Animal Welfare Labels to Consumers. papers.ssrn.com/sol3/papers.…
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Ideas to respond to AI, including one from me. nytimes.com/2026/09/21/opini…

Opinion | Bernie Sanders, Steve Case and Others on What Washington Should Do Now on A.I.

How can the government reel in the technology? Here are six ideas.

nytimes.com
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Applause to Nancy Mace for her work on behalf of animal welfare. (There is a lot of room for bipartisan efforts here.) @NancyMace @Lewis_Bollard @jeffrsebo casssunstein.substack.com/p/…
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Would consumers benefit from animal welfare labels? Here's some evidence that they would. papers.ssrn.com/sol3/papers.…
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A plea for a little refounding in 2028-2029, starting with an Executive Order on freedom of speech. papers.ssrn.com/sol3/papers.…
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New empirical paper, early draft, very long in the making: Do Animals Matter? The Value of Animal Welfare Information to Consumers. (Under review at my favorite academic journal; just 98 pp., not including online appendix.) papers.ssrn.com/sol3/papers.…
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My most personal book, coming in a few months. @clairlemon @JonahDispatch amazon.com/Animals-Matter-Ca…

Animals Matter: The Case for a Kinder World

Animals Matter: The Case for a Kinder World

amazon.com
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The Opposite of Happiness - tremendous, fabulous, funny, sad - by the great George Loewenstein. @tylercowen amazon.com/Opposite-Happines…

The Opposite of Happiness: How Bad Feelings Make and Break Us

The Opposite of Happiness: How Bad Feelings Make and Break Us

amazon.com
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📚Da oggi in preorder «Esperimenti di vita. In difesa del liberalismo» di @CassSunstein! Nel saggio l'autore risale alle radici del pensiero liberale, mostrando la forza dei suoi valori e l'ampiezza dei suoi orizzonti. 👉 silvioberlusconieditore.it/l… #SilvioBerlusconiEditore
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Much looking forward to be speaking @BrownUniversity in a few hours; we may or may not start with a certain poem by William Blake. events.brown.edu/ppe/event/3…

Constitution Day Event, Founding and Refounding: On Constitutional Moments and Mini-Moments with...

The original Constitution was rooted in identifiable principles and commitments, including (1) a repudiation of monarchy in favor of republicanism;...

events.brown.edu
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