71.
In the case of a straight-line demand curve meeting the two axes, the price-elasticity of demand at the mid-point of the line would be

72.
Which is the first-order condition for the profit of a firm to be maximum?

73.
Which of the following is one of the assumptions of perfect competition?

74.
Price and demand are positively correlated in case of

75.
Identify the coefficient of price-elasticity of demand when the percentage increase in the quantity of a commodity demanded is smaller than the percentage fall in its price

76.
In which form of the market structure is the degree of control over the price of its product by a firm very large?

77.
A firm under perfect competition is

78.
The elasticity of demand of durable goods is

79.
In the case of an inferior good, the income elasticity of demand is

80.
Which is the other name that is given to the average revenue curve?