I don't think AI will create a reduction in demand for economists, any moreso than any other job.

I do think it could reduce the number of junior positions, or another way to say that is that junior positions will require senior level work.

But that's gonna be true across most knowledge-producing occupations, I reckon.

All of the above, because large portions of our work can easily be done by AI. I'm not even sure which of those would see the greatest reduction. My guess is private>public>academia and public would be first if they responded to market signals at all.