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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.
Depiction of Phase1, Phase2 and Phase3 of the dual economy model using average output. One of the biggest drawbacks of the Lewis model was the undermining of the role of agriculture in boosting the growth of the industrial sector.
A dual economy is the existence of two separate economic sectors within one country, divided by different levels of development, technology, and different patterns of demand. The concept was originally created by Julius Herman Boeke to describe the coexistence of modern and traditional economic sectors in a colonial economy.
There is a low degree of mechanisation coupled with rain dependence. So while a large proportion of the population (70–80%) may be actively employed in the agriculture sector, the contribution to the Gross Domestic Product may be as low as 40%. [7] This points to the need to increase output per unit input and output per head.
The theory is generally associated with Hirschman. He presented a complete theoretical formulation of the strategy. Underdeveloped countries display common characteristics: low levels of GNI per capita and slow GNI per capita growth, large income inequalities and widespread poverty, low levels of productivity, great dependence on agriculture, a backward industrial structure, a high proportion ...
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]
The Texas Department of Agriculture (TDA) is a state agency within the state of Texas, which is responsible for matters pertaining to agriculture, rural community affairs, and related matters. It is currently headed by Agriculture Commissioner Sid Miller , a Republican, who was reelected to a 3rd term in 2022.
Agricultural productivity decreases, lowering marginal productivity and wages in the agricultural sector (w A), decreasing the expected rural income. However, even though this migration creates unemployment and induces informal sector growth, this behavior is economically rational and utility-maximizing in the context of the Harris–Todaro model.