"A report released today by the Policy Exchange thinktank says possible savings are equivalent to £500 for every person in the country.
"The scale of money involved compares to total savings that the government is trying to make over the life of this parliament, creating the greatest cuts in public spending in living memory –£83bn by 2015.
"'Across the public sector, extraordinary quantities of data are amassed in the course of running public services," said Chris Yiu, author of the report. "Finding ways to share or link this data together has the potential to save time for citizens and money for taxpayers. The government will need the capability to conduct analytics effectively, and the courage to pursue this agenda with integrity.'"