[nostrebored]

Wouldnt you expect an asymptotically increasing curve of utility?

I.e. if the jump from 10-40 is 11% the jump from 40-70 would be strictly leq 11? Haven’t thought about this intuition too deeply, fair warning

[elcano]

That's an intelligent hypothesis, but this could go one way or another.

I'd prefer to see empirical results.