First , he took special pains to explain why individuals should be expected to rank possible uses and then to use marginal utility to decide amongst trade - offs .
Menger 's presentation is peculiarly notable on two points .
First , Menger took special pains to explain why individuals should be expected to rank possible uses and then to use marginal utility to decide amongst trade - offs .
Menger 's presentation is peculiarly notable on two points .