The dual-sector model is a model in developmental economics. It is commonly known as the Lewis model after its inventor Sir William Arthur Lewis, winner of the Nobel Memorial Prize in Economics in 1979. It explains the growth of a developing economy in terms of a labour transition between two sectors, the capitalist sector and the subsistence sector.
Read more about Dual-sector Model: History, Assumptions, Surplus Labour and The Growth of The Economy, Capital Accumulation, Criticism, Empirical Tests and Practical Application of The Lewis Model
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“If the man who paints only the tree, or flower, or other surface he sees before him were an artist, the king of artists would be the photographer. It is for the artist to do something beyond this: in portrait painting to put on canvas something more than the face the model wears for that one day; to paint the man, in short, as well as his features.”
—James Mcneill Whistler (1834–1903)