She said: "What we're doing in a number of areas is setting up the sort of arrangements that start to move us towards the NCA, the NCA structure and then review in due course what the appropriate relationship is with the SFO and the NCA".

BBC: SFO saved by cabinet revolt

Changes in the composition and structure of the workforce are not the only catalysts for altering the relationship between unemployment and inflation.

ECONOMIST: The great American jobs machine

In becoming a for-profit company, for instance, the NYSE will have to manage a difficult change in its relationship with other Wall Street firms, which were part of the mutual structure but are now competitors as well as customers.

ECONOMIST: If you can't beat 'em, join 'em | The