Experimental evidence on the productivity effects of generative artificial intelligence

We examined the productivity effects of a generative artificial intelligence (AI) technology, the assistive chatbot ChatGPT, in the context of midlevel professional writing tasks. Inequality between workers decreased, and concern and excitement about AI temporarily rose.

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• 1 In a preregistered online experiment, we assigned occupation-specific, incentivized writing tasks to 453 college-educated professionals and randomly exposed half of them to ChatGPT.
• 2 Our results show that ChatGPT substantially raised productivity: The average time taken decreased by 40% and output quality rose by 18%.
• 3 Inequality between workers decreased, and concern and excitement about AI temporarily rose.

This research advances how AI systems learn, reason, and solve problems — with direct implications for automation and scientific discovery.

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