Environmental and Urban Economics
Matthew E. Kahn Twitter @mattkahn1966
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Wednesday, October 14, 2026
Urban Economic Growth in Asia
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Siqi Zheng of MIT and I have created something new and exciting. I encourage you to visit our free website and get involved.
Monday, October 12, 2026
My Twelve Minute Talk Explaining Why I Oppose the California Billionaire Wealth Tax (Prop 40 )
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Here is my talk's full transcript Full Transcript with Sections: Matthew E. Kahn’s Remarks on the Wealth Tax Introduction: David vs. Go...
Saturday, October 10, 2026
Why AI May Knock Out Academic Math but Not Academic Economics
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Many decades ago Frank Knight stated the point of this Substack as he sketched out the knowledge problem. My Claim : Economics and econom...
Monday, October 05, 2026
The Surprisingly Challenging Economics of Solving for How Many AI Tokens a Firm Should Buy
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Matthew E. Kahn and Gemini October 5, 2026. In standard intermediate microeconomics, a profit-maximizing firm uses an input until marginal...
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