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Economics(Paper-4) - Shivaji University

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B The Closed Economy :<br />

Assumptions :<br />

Lewis’ model is based on the following assumptions;<br />

1. There exist unlimited supplies of labour in the economy.<br />

2. The economy is dualistic in nature.<br />

3. The cost of imparting training and skill to the unskilled labour is assumed to<br />

remain constant through time.<br />

4. The production in expanding capitalist sector takes place according to the<br />

principle of profit maximization.<br />

5. The capitalist sector operates by employing the reproducible capital and wage<br />

labour.<br />

6. The subsistence sector does not make use of reproducible capital.<br />

7. The per capita output in the subsistence sector is considerable smaller than<br />

that in the capitalist.<br />

8. The relationship between the capitalist and the subsistence sector lies in the<br />

fact that as former expands; it draws labour from the latter.<br />

9. The wages which the expanding capitalist sector is not absolutely larger in<br />

relation to population growth.<br />

B Two Sector Economy :<br />

Lewis divides the economy of an underdeveloped country into two sectors the<br />

capitalist sector and the subsistence sector.<br />

i) Capitalist Sector :<br />

The capitalist sector is defined as, “that part of the economy which used<br />

reproducible capital and pays capitalists for the use of thereof.” The use of capital is<br />

controlled by capitalists, who hire the services of labour.The capitalists sector does<br />

not include only manufacturing but also plantations and mines where labour is hired for<br />

profit. The capitalist sector may either by private or public.<br />

ii) Subsistence Sector :<br />

The subsistence sector is that part of the economy which is not using reproducible<br />

capital. It can also be designated as the indigenous traditional sector or the “selfemployment<br />

sector”. Output per head is much lower in this sector than in the capitalist<br />

sector, there is existence of disguised unemployment in the agricultural sector whose<br />

marginal productivity is zero in this sector.<br />

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