But Mr Rajan's report suggests that small banks could aggregate the demands of farmers up to a practical size.

ECONOMIST: Inflation in India

And medical researchers could aggregate cancer data, helping to find new treatments, according to an SAP-sponsored Big Data report by Washington D.

FORBES: Big Data Can Save Lives -- If Culture And Strategy Let It

In a recent report, the Bank of England argued that rising house prices do not create genuine wealth in aggregate.

ECONOMIST: The American economy