econometrist vs economic expert

econometrist and economic expert both are nouns.

Word	Noun	Adjective	Verb	Adverb
econometrist	Yes	No	No	No
economic expert	Yes	No	No	No

As nouns, economic expert is a hypernym of econometrist; that is, economic expert is a word with a broader meaning than econometrist:

Other hypernyms of econometrist include economist.

econometrist (noun)	economic expert (noun)
an economist who uses statistical and mathematical methods	an expert in the science of economics