32.
The law of variable proportion is valid when

34.
Barriers to entry are highest, in which two types of markets?

35.
Consider the following statements.
1. MP is also called MPP.
2. Physical product refers to production as measured in terms of physical units of the commodity.
3. TP increases even when MP is decreasing.
Which of the statement(s) given above is/are correct?

37.
Which of the following statements summarizes Robbins definition?

39.
We may define economics as a study of the problems arising from

40.
Assertion (A): Long run equilibrium of the industry in a perfectly competitive market occurs at the point where price equals minimum long run average cost.
Reason (R): In this position of zero economic profit, there is no tendency on the part of any existing firm to stage an exit, and no potential entrant wants to enter the industry.