New Delhi, June 26 -- This column looks at the relative importance of the manufacturing industry and services in India's growth story and discusses our required policy priorities in that context.

The origin of modern development theory can be traced to the regularities that Simon Kuznets and others observed in the 1950s and 1960s on how the structure of an economy evolves with growth. A key feature he observed is that as per capita GDP (a concept he invented) rises, the dominant sector of the economy shifts from agriculture to industry and then services.

This regularity, combined with Arthur Lewis's foundational theory about how the transfer of labour and surplus from a traditional agricultural sector to a modern industrial sector const...