[jacquesm]

These studies are fascinating but I think they should stay away from such detailed predictions as 'in the reference scenario, the USA was forecasted to once again become the largest economy in 2098'. That's just way too far out to make any meaningful statements about a simple ordering of economies in relative size.

[cj]

Is that really a prediction in the study? Or does their reference scenario use that (unknowable assumption) as a necessary input in calculating their population predictions?