(1) Matter is exempt matter if its disclosure could reasonably be expected—
(a) to have a substantial adverse effect on the ability of government to manage the economy of the State;
unless its disclosure would, on balance, be in the public interest.
(2) Without limiting subsection (1)(a), that paragraph applies to matter the disclosure of which would reveal—
(a) the consideration of a contemplated movement in government taxes, fees or charges; or
(b) the imposition of credit controls.