India, Dec. 21 -- The amount of change in the world economy in the last 20 years and the rate at which it has occurred is staggering. It is inevitable that everyone will have to deal with a significant degree of professional change. This shift could be seismic, to the degree that the very nature of a trade or profession is transformed forever.

The great economist and Nobel laureate WA Lewis argues that an economy consists of two sectors: Capitalist (urban and industrial) and a subsistence sector (rural and agricultural). Wages in the capitalist sector are higher than in the subsistence sector, hence there is a tendency for labour to move from the latter to the former. However, in India, the growing population has led to an endless supply...