Ar trebui să fie "Bancherii sunt economiști", nu "Bancherii sunt économiste"
The translation offered and accepted in the exercise, 'Bancherii sunt economiste', is different from the one used in a previous exercise, 'Bancherii sunt economiști'.
apparently, bancher has only one form regardless gender (the word is always masculine) while economist has the pair economistă so economiști and economiste are plurals of different words
Are female economists 'economiste'?
We wish bankers were economists, then maybe economies wouldn't crash!