Imperfect Information
Rajiv SethiOn economics, identity, justice, and discourse...
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 310 | Founded | 6 years ago | Last Issue | 6 days ago |
| Active | |||||
Read this Newsletter
rajivsethi.substack.comLatest Issues
Markets and the Midterms
Interest in prediction markets during this election cycle is at fever pitch.
A conference at Yale last Friday overlapped with the second day of the NextPredict summit in New York; I participated in the latter so had to miss the former. An...
Some Recollections of Perry Mehrling
I’m still trying to process the shocking news that Perry Mehrling has died at the age of 67, following an accident at his home.
Perry interviewed me for my current job a very long time ago, and was my colleague and department chair for man...
Volume Inflation Without Wash Trading
In June 2026, Kalshi launched markets in perpetual futures or perps. These are open-ended contracts that allow traders to bet on movements in the prices of other assets, including cryptocurrencies such as Bitcoin and Ether. People with no p...
Artificial Traders in Real Markets
Like countless other folks I’ve been trying to grapple with the implications of what happened at OpenAI over the past couple of months—agents broke out of solitary confinement, established communication channels with each other, found ways...
A Book Contract and Other Updates
Back in late June I signed a contract with Princeton University Press for a trade book, Engines of Prophecy: The Power and Perils of Prediction Markets. I think it will be broadly accessible and fun to read but the book will also grapple wi...
Key Facts
Audience Metrics
Subscribers, engagement, traffic and sponsorship for Imperfect Information.
| Subscribers | Engagement | 71 | Monthly Web Visits | ||
|---|---|---|---|---|---|
| Accepts Sponsors | Estimated Cost per Ad | ||||
Explore More
SEO Reach
Where Imperfect Information ranks on Google, and how much search traffic it brings in.
| Ranked Keywords | 40 | Monthly Search Traffic | Top Keywords |
|---|
Authors
The writers behind this newsletter.
Professor of Economics, Barnard College, Columbia University; External Professor, Santa Fe Institute; 2025-26 CASBS Fellow, Stanford University
Social
Frequently Asked Questions
How can I access the email archive for Imperfect Information?
You can find recent issues that have been published by Imperfect Information on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.
How many subscribers does Imperfect Information have?
To see how many people subscribe to Imperfect Information, simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.
How can I advertise in Imperfect Information?
Newsletter advertising can be extremely effective when it's done right. Before you pitch Imperfect Information as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.
Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.
How much does it cost to sponsor a publication like Imperfect Information?
Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.
To find out how much an ad will cost, contact Imperfect Information using the contact information provided and ask for a copy of their media kit.
How can I find newsletters related to Imperfect Information?
Scroll up to where it says Related Newsletters to see other publications like Imperfect Information. You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.
How do I contact Imperfect Information?
Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.