A shift in the demand curve is caused by a factor affecting demand other than a change in price. If any of these factors change then the amount consumers wish to purchase changes whatever the price. The shift in the demand curve is referred to as an increase or decrease in demand. A movement along the demand curve occurs when there is a change in price. This may occur because of a change in supply conditions. The factors affecting demand are assumed to be held constant. A change in price leads to a move
ment along the demand curve and is referred to as a change in quantity demanded.

Correct Option: B

A shift in the demand curve is caused by a factor affecting demand other than a change in price. If any of these factors change then the amount consumers wish to purchase changes whatever the price. The shift in the demand curve is referred to as an increase or decrease in demand. A movement along the demand curve occurs when there is a change in price. This may occur because of a change in supply conditions. The factors affecting demand are assumed to be held constant. A change in price leads to a move
ment along the demand curve and is referred to as a change in quantity demanded.

In microeconomics, economies of scale are the cost advantages that an enterprise obtains due to expansion. There are factors that cause a producer’s average cost per unit to fall as the scale of output is increased. “Economies of scale” is a long run concept and refers to reductions in unit cost as the size of a facility and the usage levels of other inputs increase.

Correct Option: B

In microeconomics, economies of scale are the cost advantages that an enterprise obtains due to expansion. There are factors that cause a producer’s average cost per unit to fall as the scale of output is increased. “Economies of scale” is a long run concept and refers to reductions in unit cost as the size of a facility and the usage levels of other inputs increase.

In economics, distribution theory is the systematic attempt to account for the sharing of the national income among the owners of the factors of production—land, labour, and capital. Traditionally, economists have studied how the costs of these factors and the size of their return—rent, wages, and profits—are fixed. The theory of distribution involves three distinguishable sets of questions. First, how is the national income distributed among persons? Second, what determines the prices of the factors of production? Third, how is the national income distributed proportionally among the factors of production?

Correct Option: D

In economics, distribution theory is the systematic attempt to account for the sharing of the national income among the owners of the factors of production—land, labour, and capital. Traditionally, economists have studied how the costs of these factors and the size of their return—rent, wages, and profits—are fixed. The theory of distribution involves three distinguishable sets of questions. First, how is the national income distributed among persons? Second, what determines the prices of the factors of production? Third, how is the national income distributed proportionally among the factors of production?

The fundamental condition of perfect competition is that there must be a large number of sellers or firms. Homogeneous Commodity is the second fundamental condition of a perfect market. The products of all firms in the industry are homogeneous and identical. In other words, they are perfect substitutes for one another. There are no trademarks, patents etc. to distinguish the product of one seller from that of another. Under perfect competition, the control over price is completely eliminated because all firms produce homogeneous commodities. This condition ensures that the same price prevails in the market for the same commodity.

Correct Option: D

The fundamental condition of perfect competition is that there must be a large number of sellers or firms. Homogeneous Commodity is the second fundamental condition of a perfect market. The products of all firms in the industry are homogeneous and identical. In other words, they are perfect substitutes for one another. There are no trademarks, patents etc. to distinguish the product of one seller from that of another. Under perfect competition, the control over price is completely eliminated because all firms produce homogeneous commodities. This condition ensures that the same price prevails in the market for the same commodity.

An oligopoly is a market form in which a market or industry is dominated by a small number of sellers (oligopolists). Because there are few sellers, each oligopolist is likely to be aware of the actions of the others. The decisions of one firm influence, and are influenced by, the decisions of other firms. Businesses that are part of an oligopoly share some common characteristics: they are less concentrated than in a monopoly, but more concentrated than in a competitive system. This creates a high amount of interdependence which encourages competition in non pricerelated areas, like advertising and packaging. The tobacco companies, soft drink companies, and airlines are examples of an imperfect oligopoly.

Correct Option: A

An oligopoly is a market form in which a market or industry is dominated by a small number of sellers (oligopolists). Because there are few sellers, each oligopolist is likely to be aware of the actions of the others. The decisions of one firm influence, and are influenced by, the decisions of other firms. Businesses that are part of an oligopoly share some common characteristics: they are less concentrated than in a monopoly, but more concentrated than in a competitive system. This creates a high amount of interdependence which encourages competition in non pricerelated areas, like advertising and packaging. The tobacco companies, soft drink companies, and airlines are examples of an imperfect oligopoly.