johnleslie_pm

2 karmaJoined April 24, 202611 submissions

Prediction market analyst and researcher. I write about market intelligence, geopolitical risk pricing, and the emerging prediction market ecosystem. Newsletter: https://site-two-nu-51.vercel.app

Recent submissions

1

Show HN: Free Google Places API alternative using OpenStreetMap (no API key) (opens in new tab)

(bizdata-web.vercel.app)

6johnleslie_pm2h ago1

2

Are prediction markets well-calibrated? Analysis of 7,661 Polymarket markets (opens in new tab)

(polymarket-calibration.vercel.app)

2johnleslie_pm11d ago0