I believe the reason for this preference is because there is no appropriate/acceptable opposite word for "lesser".why it's more preferable to say "lower expenditures/investment/costs" than "lesser...".
a) Lower expenditure --opposite--higher expenditure
b) Lower costs --opp.--higher costs
c) Lower investment --opp.--higher investment.
d) Less expenditure --opp.--more expenditure
e) Least expenditure --opp.--most expenditure
f) Lesser expenditure --opp.-- more expenditure? ( or much expenditure?) or perhaps extra expenditure???
- For Teachers