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The Dual Sector model, or the Lewis model, is a model in developmental economics that explains the growth of a developing economy in terms of a labour transition between two sectors, the subsistence or traditional agricultural sector and the capitalist or modern industrial sector.
Lewis published in 1954 what was to be his most influential development economics article, "Economic Development with Unlimited Supplies of Labour" (Manchester School). [24] In this publication, he introduced what came to be called the dual sector model , or the "Lewis model".
Sir Arthur Lewis used the concept of a dualistic economy as the basis of his labour supply theory of rural-urban migration. Lewis distinguished between a rural low-income subsistence sector with surplus population, and an expanding urban capitalist sector (see Dual-sector model). The urban economy absorbed labor from rural areas (holding down ...
The Lewis turning point is a situation in economic development where surplus rural labor is fully absorbed into the manufacturing sector. This typically causes agricultural and unskilled industrial real wages to rise. The term is named after economist W. Arthur Lewis. Shortly after the Lewis point, an economy requires balanced growth policies. [1]
From a Marxist perspective, a labour supply is a core requirement in a capitalist society.To avoid labour shortage and ensure a labour supply, a large portion of the population must not possess sources of self-provisioning, which would let them be independent—and they must instead, to survive, be compelled to sell their labour for a subsistence wage.
The division of the economy into formal and informal sectors has a long heritage. Arthur Lewis in his seminal work Economic Development with Unlimited Supply of Labour, published in the 1950s, was the celebrated paradigm of development for the newly independent countries in the 1950s and 1960s. The model assumed that the unorganized sector with ...
Supply (production of goods and services) creates a matching demand for the output and this results in the entire output being sold and consumed. However, Keynes stated that Say's law is not operational in any country because people do not spend their entire income – a fraction of it is saved for future consumption. [ 11 ]
Once AG amount of labor force (say) is absorbed, it represented by OG' in the industrial sector, and the labor remaining in the agricultural sector is then OG. But how is the quantity of labor absorbed into the industrial sector determined? (A) shows the supply curve of labor SS' and several demand curves for labor df, d'f' and d"f".