We asked the departments what they meant by growth, and the intended timeframe, but they were not able to give us a satisfactory answer.22 DBT told us that growth was “growing GDP”, and HM Treasury said “growth is the GDP”, but did not specify what this meant or how much GDP growth was the aim.23 DBT and HM Treasury were unable to explain how this broke down into growth drivers or productivity improvements, or how the Action Plan was expected to practically contribute to it.24