The budget line, Macroeconomics

The Budget Line: The Consumer Constraints

The consumer would like to maximize his satisfaction by reaching the highest possible indifference curve. But in the process, he faces constraints in form of his income and prices of goods and services for which he has to make payment. The budget line shows various combinations of food and clothing that a consumer can purchase given his money income and prices of the two goods. Suppose the consumers' money income (M) is Rs 600 per week and the price of food (Pf) is Rs 3 and the price of clothing (Pc) is Rs 60. Fig. 3.8 shows that if the consumer spends all his income on food, he would buy 200 units of food per week (point B). On the other hand, if he spends all his income on clothing he could buy 10 units of clothing per week (point A).

By joining points A and B by a straight line we define budget line AB. Thus, the budget line depicts 'all combinations of two goods that a consumer can purchase by spending his given money income on the two goods at their given prices. Each such combination is represented by a point on the budget or price line.

The budget equation can be written in the form:

QX, Pf + Qy.Pc = M

where Qx and Qy are the respective quantities of food and clothing purchased.

1953_budget line.png

Slope of AB = Pf /Pe

Any point outside the given price line, like G, is not attainable by the consumer and at point L the consumer underspends his income. An increase in the money income, prices remaining constant or an equal proportionate increase in prices (ceteris paribus), shifts the budget line upwards parallel '(line EF) to the original budget line. Similarly, a decrease in the money income shifts the budget line downwards (line CD).

750_budget line1.png

With a change in price, the budget line will rotate on the axis representing the good whose price has changed, money income and price of the other good remaining constant. A decrease in the price of the good pivots the budget line to the right or outwards and vice versa. In Fig. 3.9 a decrease in the price of food to Rs 2 rotates the budget line to the position AN and an increase in price to Rs 6 pivots the budget line inwards to AR.

Posted Date: 7/21/2012 6:26:02 AM | Location : United States

Related Discussions:- The budget line, Assignment Help, Ask Question on The budget line, Get Answer, Expert's Help, The budget line Discussions

Write discussion on The budget line
Your posts are moderated
Related Questions
Suppose the own price elasticity of demand for good X is -5, its income elasticity is 2, its advertising elasticity is 4, and the cross-price elasticity of demand between it and go

A recent study of long distance phone calls made from WPU, showed that the length of the calls follows the normal probability distribution with a mean of 3.2 minutes per call and a

Define the interpreting the price elasticity of demand. Interpreting the Price Elasticity of Demand: Demand is: a. Elastic when the price elasticity of demand is greater

(I am providing them below) of Module 5 before beginning this assignment.  You will have the opportunity to work through much of the assignment during the group activity for week 1

Financing of the external payments deficit: The trend  in India's widening CAD during the second half of  the eighties, both in absolute terms and also as a proportion of the

Q. Explain about Household savings? Remember that consumption may refer to observed consumption as well as to demand for consumption. The same is true for 'household savings',

Explain how inflation unemployment trade off is not feasible under adaptive expectations?

If the MPPL/ MPPK in the production of a good are less than w/r, why is the produce not in producer equilibrium? Explain how, with no change in budget size for the firm and with th

Determine Velocity Approach to Money Demand. The Velocity Approach to Money Demand: The velocity of money: V = (P × Y)/ M The real quantity of money demanded is pr

What is the difference between an economic luxury and an economic necessity? Ans) An economic luxury is wasting land on pools huge garden, etc. An economic requirement is what y