In practice, the only successful method of reducing public spending as a share of GDP has been to impose tight curbs while the economy is growing rapidly. We shall be lucky if such an opportunity appears.
https://www.johnkay.com/2009/07/01/britain-has-sunk-itself-deep-into-a-fiscal-black-hole/
Look behind the fiscal tree but don’t expect to find any money
https://www.johnkay.com/2015/12/16/look-behind-the-fiscal-tree-but-dont-expect-to-find-any-money/
A fiscal watchdog should not need a crystal ball
https://www.johnkay.com/2010/09/22/a-fiscal-watchdog-should-not-need-a-crystal-ball/