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Iso-Quants: Understanding Iso-Product Curves in Economics, Lecture notes of Economics

The concept of iso-quants or iso-products, which are curves representing various combinations of two inputs yielding the same output. Assumptions, properties, and the relationship between iso-quant curves and iso-cost lines. It also includes an iso-product schedule and map.

Typology: Lecture notes

2021/2022

Uploaded on 01/11/2024

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Iso-Quants
The term Iso-quant or Iso-product means equal quantity or equal product. A given
quantity of output may be produced with different combinations of factors. Iso-
quant curves are also known as Production Indifference curves. It is an extension
of Indifference curve analysis from the theory of consumption to the theory of
production.
Iso-quant may be defined as a locus of points representing the various
combinations of two inputs yielding the same output. Iso- quant curves slope
downward from left to right. The slope of an Iso-quant curve expresses the
marginal rate of technical substitution (MRTS). “Iso-product curve shows the
different input combinations that will produce a given output.” Paul A Samuelson
Assumptions:
1. Only two factors are used to produce a commodity.
2. Factors of production can be divided into small parts.
3. Technique of production is constant.
4.The substitution between the two factors is technically possible.
5.Factors of production can be used with maximum efficiency.
Iso-Quant Schedule:
Let us suppose that there are two factor inputslabour and capital. An Iso-
product schedule shows the different combination of these two inputs that yield
the same level of output as shown in the table.
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Iso-Quants The term Iso-quant or Iso-product means equal quantity or equal product. A given quantity of output may be produced with different combinations of factors. Iso- quant curves are also known as Production Indifference curves. It is an extension of Indifference curve analysis from the theory of consumption to the theory of production. Iso-quant may be defined as a locus of points representing the various combinations of two inputs yielding the same output. Iso- quant curves slope downward from left to right. The slope of an Iso-quant curve expresses the marginal rate of technical substitution (MRTS). “Iso-product curve shows the different input combinations that will produce a given output.” Paul A Samuelson Assumptions:

1. Only two factors are used to produce a commodity. 2. Factors of production can be divided into small parts. 3. Technique of production is constant. 4. The substitution between the two factors is technically possible. 5.F actors of production can be used with maximum efficiency. Iso-Quant Schedule: Let us suppose that there are two factor inputs—labour and capital. An Iso- product schedule shows the different combination of these two inputs that yield the same level of output as shown in the table.

The table shows that the five combinations yield the same level of output, i.e., 200 metres of cloth. Iso Quant Curve: From the above schedule iso-product curve can be drawn with the help of a diagram. An. equal product curve represents all those combinations of two inputs which are capable of producing the same level of output. The Figure shows the various combinations of labour and capital which give the same amount of output. A, B, C, D and E.

Iso-Cost Line: Iso-cost line may be defined as the line which shows different possible combinations of two factors that the producer can afford to buy given his total expenditure to be incurred on these factors and price of the factors. In the diagram, labour is given on OX-axis and capital on OY-axis. The points A, B, C and D convey the different combinations of two factors, capital and labour which can be purchased by spending Rs. 100 0. Point A indicates 5 units of capital and no unit of labour, while point D represents 10 units of labour and no unit of capital. Point B indicates 4 units of capital and 2 units of labour. Producer’s Equilibrium or Least Cost Combination: In simple words, producer’s equilibrium implies to that situation in which producer maximizes his profit. It is also known as optimum combination of the factors.

In the diagram, P 1 L 1 iso-cost line has become tangent to iso-product curve (representing 500 units of output) at point E. At this point, the slope of the iso- cost line is equal to the iso-product curve. The slope of the iso- product curve represents MRTS of labour for capital. The slope of the iso-cost line represents the price ratio of the two factors. Thus, the producer attains equilibrium at point ‘E’ on IQ (500 units) which is tangent to the lowest possible iso-cost line P1L1.