[charcircuit]

Because the data is private and often such studies are not measuring solely the part that AI makes more productive. And measuring productivity in general is a very hard problem so the results of whatever study often are meaningless in practice. Pair this with studies today still being based off ancient models like GPT-4o and it's even more meaningless.

If you are familiar with AI it's obvious how it increases productivity. When bugs get fixed with 0 human time it's plain as day that it was productive compared to a human making the fix.