In addition, central banks, by virtue of their relationships with international organizations, like the International Monetary Fund and the Bank for International Settlements, benefit by sharing best practices in  2  BIS Review 113/2007  reserves management, in particular, and central banking in general, all of which greatly contribute to fostering transparency and stability in the international financial system.
In contrast to the foreign exchange reserves, Stabilisation Funds and SWFs may or may not be subjected to such rigorous accountability and transparency tests, internally, by the governments concerned. The main reason for lack of clarity is that global benchmarks for disclosure are yet to evolve, to which they may be expected to conform.