In any society at any point of time all the resources would be relatively scarce. We cannot have whatever we want. We need to decide our priorities and then distribute the resources. In such a situation we need to take into consideration goals of efficiency and equity (sense of fairness). If the distribution of resources or goods in an economy is fair between different members of the society, it indicates equity. Efficiency is making the best out of scarce resources at the best possible price. Efficiency refers to the size of economic resource and equity refers to how this economic resource is distributed. When the resources are distributed we will be faced with a trade-off between efficiency and equity. This trade off is a central principle in economics. The best example of trade-off between equity and efficiency can be explained with environmental policy of the government. Who gets the most Continue reading
Economics Basics
Income Elasticity of Demand – Concept and Types
The income elasticity of demand shows the responsiveness of quantity demanded of a certain commodity to the change in income of the consumer. The income elasticity of demand is also defined as the ratio of the percentage change in the demand for a commodity to the percentage change in income. Income elasticity of demand can be expressed as follows: Income elasticity (ey) = Percentage change in quantity demanded / Percentage change in income For example, consumer’s income rises from $ 100 to $ 102, his demand for good X increases from 25 units per week to 30 units per week then his income elasticity of demand X is: ey = 5/25 x 100/2 = 10. It means that 1 percent increase in income results 10 percent increase in demand and vice versa. The income elasticity may be positive or negative or zero depending upon the nature of a commodity. As a Continue reading
Consumer’s Surplus – Definition, Significance and Criticisms
The concept of consumer’s surplus is one of the most important idea in economic theory especially in demand and welfare economics. This law was first developed by French engineer A.J Dupuit in 1844 to measure the social benefits of public commodities like canals, bridges, national highways, etc. This concept was further refined and popularized by Dr. Alfred Marshall in 1890. The essence of the concept of consumer’s surplus is that people generally get more satisfaction or utility from the consumption of commodities than the actual price they pay for them. It has been found that people are willing to pay more price for the commodity than they actually pay for them. This extra satisfaction which the consumers obtain from buying a commodity has been called consumer’s surplus by Marshall. The amount of money which a person is prepared to pay for a commodity indicates the amount of utility he derives Continue reading
Principle of Time Perspective
The economic concepts of the long run and the short run have become part of everyday language. Managerial economists are also concerned with the short-run and long-run effects of decisions on revenues as well as on costs. The actual problem in decision-making is to maintain the right balance between the long-run and short-run considerations. A decision may be made on the basis of short-run considerations, but may in the course of time offer long-run repercussions, which make it more or less profitable than it appeared at first. An illustration will make this point clear. Suppose there is a firm with temporary idle capacity. An order for 5,000 units comes to management’s attention. The customer is willing to pay 4.00 $ per unit or 20,000 $ for the whole lot but not more. The short-run incremental cost (ignoring the fixed cost) is only 3.00 $. Therefore, the contribution to overhead and Continue reading
Pricing under Different Market Structures
Price-fixation is an important managerial function in all business enterprises. If the price set is quite high, the seller may not find enough number of consumers to buy his product. If the price fixed is too low, the seller may not be able to cover his cost. Thus, fixing appropriate price is a major decision-taking function of any enterprise. Price-decisions, no doubt, need to be reviewed from time to time. Market Structures and Pricing Decisions A firm operates in a market and not in isolation. Under Perfect Competition price is determined by the forces of demand and supply. The point of intersection between demand and supply curves is the point of equilibrium which determines the equilibrium price. Each firm under perfect competition is a price taker and not a price maker. The Average Revenue Curve of a firm under perfect competition is horizontal and that AR = MR. Further there Continue reading
Elasticity of Demand – Factors, Types and Importance
Elasticity is a term that was initially developed by known economic scholar called Alfred Marshall, and has been since used in measuring the relationship that exists between product price and its quantity demanded. It typically followed the law of demand that states that the lower the price of goods and services, the higher the quantity that will be demanded of such goods and services i.e. it primarily explains only the actual directions of changes in the demand for the commodity, but not really explaining the extent of that change. A further development on these lapses led to the concept of elasticity of demands. In practical term, elasticity means the act of responsiveness. Meanwhile, elasticity of demand has been theoretically defined as the responsiveness of the actual quantity demanded of a product to the change in its actual price. Elasticity of demand could be defined as the measure of the degree Continue reading