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Ethan Mollick: No good tests for AI coding tool productivity

Ethan Mollick
@emollick.bsky.social

Professor at Wharton, studying AI and its implications for education, entrepreneurship, and work. Author of Co-Intelligence. Book: https://a.co/d/bC2kSj1 Substack: https://www.oneusefulthing.org/ Web: https://mgmt.wharton.upenn.edu/profile/emollick

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Ethan Mollick
@emollick.bsky.social

We have, as far as I can tell, no good tests of the productivity impact of the autonomous coding tools that appeared starting in December 2025. Every paper out there is from prior to the Claude Code/Codex revolution. A huge gap in our knowledge about what is happening in coding at this moment.

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16 days ago
Ethan Mollick: No good tests for AI coding tool productivity — AIBriefs