That's why I said one of ..., it's the government new strategy, can google for details if you are interested.
I have some figures here:
2017 Total official assets (Official assets are the sum of foreign exchange reserves, net forward reserve positions, and foreign assets of sovereign wealth funds minus public and publicly guaranteed external debt):
https://piie.com/blogs/trade-investment-policy-watch/currency-manipulation-update-2015-17
2018 Forex reserves:
https://en.wikipedia.org/wiki/List_of_countries_by_foreign-exchange_reserves
China
Forex reserves: $3053B
Official external net assets: $3250B
Percentage of forex reserves in official assets: 93.9%
Japan
Forex reserves: $1209B
Official external net assets: $1433B
Percentage of forex reserves in official assets: 84.4%
Hong Kong
Forex reserves: $423B
Official external net assets: $423B
Percentage of forex reserves in official assets: 100%
Singapore
Forex reserves: $294B
Official external net assets: $800B
Percentage of forex reserves in official assets: 36.8%
Norway
Forex reserves: $65B
Official external net assets: $1097B
Percentage of forex reserves in official assets: 5.9%
China, Japan and HK are putting most of their foreign assets in forex reserves to protect against exchange rate volatility. Greater liquidity but lesser returns.
Singapore and Norway are putting most of their foreign assets in sovereign wealth funds for long-term investments. Greater returns but lesser liquidity.
In Norway, the handlingsregelen rule allows up to 3% of the reserves to be allocated to the yearly budget. It contributed around NOK231B (USD26.7B) to the budget in 2017.
https://www.statsbudsjettet.no/Upload/Statsbudsjett_2018/dokumenter/pdf/budget_2018.pdf
In Singapore, the constitution allows up to half of the long-term net investments returns to be allocated to the yearly budget. It contributed around SGD14.6B (USD10.8B) to our budget in 2017, more than our income tax, corporate tax or GST. It's the largest source of government revenue currently.
https://dollarsandsense.sg/budget-2018-why-calls-to-use-more-of-singapores-nirc-make-no-sense/
