I’m an econ grad student and I’ve thought a bit about it. Want to pick a time to chat? https://calendly.com/pawtrammell

I'm a MA student in formal philosophy, and I have an unpublished paper on the topic, defending interpersonal comparisons of decision theoretic utility against Hausman and others, who see this view defeated by VNM utility theory.

(More precisely, I defend the view that the relation "agent A desires outcome X to degree x, and Y to degree y, and x is is larger than y" is more basic than the relation "A prefers X to Y". Basically, the theory is that utility (more precisely, degree of desire) is more fundamental than preference, not the other way round. This opens up the possibility of absolute intra- and interpersonal utility strength comparisons.)

I've been reading From Darwin to Derrida by David Haig, which touches on interpersonal comparison and intrapersonal comparison from an evolutionary genetics perspective & a philosophical one. You might like to check it out. 

There's a guy in my (Econ) PhD programme with a working paper relevant to this - I can put you in touch with him if you life: https://arxiv.org/pdf/2203.10305.pdf