31.
Which of the following is a producer good?

32.
He described economics as a science of material welfare

33.
Economic profit is

34.
Unit cost is another name for

35.
Which statement relates to macroeconomics?

36.
Ceteris Paribus means

37.
A firm earns economic profit when total profit exceeds

38.
All inputs can be varied in

39.
Scarcity means

40.
Who is the 'father of economics'?