Mr Brown said that it was vital to secure a ‘low inflation economy’ that has the ‘flexibility to make the right decisions’.
Three-year deals would help control inflation and make it easier for workers to budget for the long-term, he said.
Mr Brown added: ‘There is no point in a big salary rise that is wiped out by a big inflation rise.’
Chancellor Alistair Darling said three-year deals would also help government departments manage their spending plans.
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