When it comes to securing citizens’ retirements, the Nordic countries are quietly running one of the world’s most successful experiments.

Norway’s trillion-dollar fund

Norway’s sovereign wealth fund — built from decades of oil and gas revenue — is the largest in the world, owning on average more than one percent of every listed company on the planet. Its returns help underwrite the nation’s generous welfare state.

Sweden’s hybrid system

Sweden combines a state pension with a ‘premium’ component that lets citizens invest a slice of their contributions in funds of their choosing — blending security with personal choice.

The lesson for ageing societies everywhere: transparency, long-term thinking and broad public buy-in matter more than any single clever policy.