Prepared for the National Council of Legislators from Gaming States, Summer 2026 Conference, San Diego, California   © Copyright July 20, 2026, all rights reserved worldwide.  Gambling and the […]

I recently joined WGN Radio’s Legal Face-Off to discuss futures prediction markets. My segment begins at 17:15. You can listen […]

I will be presenting my paper, “Why Courts and Congress Should but Won’t Outlaw Prediction Markets,” at the 19th International Conference on Gambling & Risk Taking at the Bellagio Hotel […]

New academic paper from Mark Griffiths and Michael Auer shows for the first time who plays online casinos and how much they bet. Looking at 926,086 real money gamblers in

On March 23, 2026, Kalshi and Polymarket, by far the largest prediction markets, announced bans on insider trading; even though insider trading is already banned in their Terms and Conditions.

I was recently quoted in an article published by Danish television network TV 2 Danmark examining the lawsuit between the State of Nevada and prediction market platform Kalshi. The case

Insider trading is illegal – in securities trading and regulated sports betting.  But it is actually one of the advantages that futures markets have over more conventional predictors.  If you

The Capitol Forum recently published an article examining the difficulties Sporttrade has faced trying to operate an exchange-style sports prediction platform under existing state gambling laws. […]

On February 19, 2026, Kalshi removed to federal court the lawsuit filed against it in state court by the state of Nevada.  This prevents the state judge from issuing a

Today, February 17, 2026, saw the following: 1)  The US Ninth Circuit Court of Appeals denied Kalshi’s attempt to prevent the state of Nevada from suing the sports event prediction