Sovereign Wealth Funds
State-owned investment funds, mostly built on oil money, that manage around $15 trillion and buy governments a shareholder seat in other economies.

A sovereign wealth fund is a pot of government money invested in financial assets, usually abroad, and usually funded by something the country cannot count on forever: oil, gas, minerals, or a long-running trade surplus. The first was the Kuwait Investment Board, set up in London in 1953, eight years before Kuwait was even independent, on the theory that the oil would run out and the money should outlive it. By the end of 2025 these funds held more than $15 trillion between them, with six of them above a trillion dollars each.
They are not the same as central bank reserves, which exist to defend a currency and sit in safe, easily sold assets. Sovereign funds are meant to earn a return, so they buy shares, property, infrastructure, private companies, and lately a great deal of technology.
The Norwegian model
Norway's Government Pension Fund Global is the biggest and the one everyone copies. It is worth more than two trillion dollars and owns roughly 1.5 percent of every listed company on earth, which makes a country of five and a half million people the largest single shareholder in the world.
The design is the interesting part. Every krone of petroleum revenue goes into the fund. The government may spend only the fund's expected real return, a rule set at four percent in 2001 and cut to three percent in 2017, so the capital is never touched. Everything is invested outside Norway, which keeps the money from driving up the exchange rate and hollowing out the rest of the economy. An ethics council excludes companies on published criteria, and the fund votes its shares.
Norway did not avoid the resource curse by finding better oil. It wrote the spending rule before the money arrived.
Funds as instruments of statecraft
The Gulf funds work differently. Saudi Arabia's Public Investment Fund, Abu Dhabi's ADIA and Mubadala, and the Qatar Investment Authority are not only savings vehicles. They are tools for building new industries at home and buying influence abroad, and their money now sits in football clubs, film studios, semiconductor plants, ports, and artificial intelligence data centers. Singapore's GIC and Temasek mix returns with national development in a similar way. China set up CIC in 2007 to do something more productive with a surplus that was otherwise parked in low-yielding American bonds.
Recipient countries noticed. The prospect of foreign governments quietly buying strategic assets produced tighter investment screening in Washington and Brussels, and in 2008 the funds signed up to the Santiago Principles, a voluntary code on governance and transparency meant to reassure everyone that the investments were commercial. The reassurance only goes so far, because an investment can be commercial and useful to a government at the same time.
When it goes wrong
A sovereign fund is a savings account controlled by a government, so it is exactly as disciplined as that government. Venezuela's stabilization funds were emptied whenever politics demanded it. Malaysia's 1MDB became one of the largest financial frauds ever prosecuted, with billions diverted through shell companies. Several funds have bought domestic assets at generous prices from politically connected sellers.
So the same instrument is both the standard cure for resource dependence and, in the wrong hands, one more symptom of it. Norway's real achievement was not the oil. It was a rule that stopped the government spending it, and forty years of sticking to that rule.