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Imperfect Information

Rajiv Sethi

On economics, identity, justice, and discourse...

Platform
Substack
PricingOnly free issuesPublishesWeekly
Issues300SubscribersRead rajivsethi.substack.com

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Latest Issues

Recent posts by this newsletter. Browse the email archive.

The Second Coming

The price of a contract that pays a dollar if Jesus Christ returns this year is currently trading at about four cents on Polymarket, up from about two cents in early January:

8 days ago
23
3

Guessing Games

In my last post I discussed the case of a Polymarket trader who placed a series of well-timed bets on the ouster of Nicolás Maduro and made a profit of over $400,000 (on a $32,000 investment) in just a few days. What was unusual was not the...

a month ago
26
0

The Venezuela Windfall

Major economic, political, and military decisions move asset prices, and those with foreknowledge of such things can make significant trading profits. For example, the placement and easing of tariff protections had a predictable whipsaw eff...

a month ago
21
8

Wordle and the Wisdom of Crowds

I’m hoping that this post will have something useful to say about strategic diversity, meritocratic selection, and asset price bubbles. But before I get there I need to take a detour through Wordle, the popular online game that is played by...

2 months ago
23
16

Authors

The writers behind this newsletter.

  • Rajiv Sethi

    Professor of Economics, Barnard College, Columbia University; External Professor, Santa Fe Institute; 2025-26 CASBS Fellow, Stanford University

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