Economics can be characterised as the study of scarcity: there are finite resources and goods but there is an almost infinite demand through needs and desires.
deal with the fundamental problem of scarcity
the animal Darwin examined were finches on the Galapagos islands (at least finches were the main thing he studied)
;;
Needs to be examined by a gunsmith
Go to a doctor and get examined to find out what the problem is.Find another hobby.
C.Congress
the main problem is a problem that occurs in the middle of the story
the main problem is a problem that occurs in the middle of the story
The possessive form of the plural noun economists is economists'.example: All of the economists' predictions are for improvement in the next quarter.
Congress
economists have classified input as
What do economists call elasticity?