Norway

Luxembourg tops the world in purchasing power per capita at approximately $127,674 nominal GDP — but by purchasing power parity, Switzerland, Singapore, Norway, and the United States compete closely for the positions that matter most to daily living standards. This ranking covers the top 15 countries by Numbeo's Local Purchasing Power Index 2025, cross-referenced with IMF PPP GDP per capita, with methodology, caveats, and an explanation of why nominal wealth and real purchasing power so often diverge.

China leads the world in hydropower with 435.95 GW of installed capacity — more than three times that of second-place Brazil at 110 GW. Hydropower is the world's largest source of renewable electricity, accounting for roughly 40 percent of global renewable generation. This ranking covers the top 15 countries by hydropower installed capacity using IHA and IRENA 2024 data, with methodology, historical context, and caveats about what capacity figures do and do not tell you.

Ivory Coast levies a top marginal personal income tax rate of 60% — the highest statutory rate in the world. Denmark (57%), Austria (55%), and Sweden (52%) follow among the wealthy nations that combine high rates with extensive public services. The United States tops out at 37% federally, though state taxes push effective top rates higher in California and New York. This ranking covers the top countries by statutory top marginal rate, with methodology, caveats, and what the numbers actually mean for workers.

China dominates global EV adoption: of the nearly 58 million electric cars on the world's roads at the end of 2024, China accounts for more than half. Chinese buyers purchased over 11 million new EVs in 2024 alone — more than were sold globally just two years earlier. Norway leads in EV penetration, with 29% of all cars on its roads now electric. This ranking covers the top countries by total EV stock, new sales, and market share, sourced from the IEA Global EV Outlook 2025.

Norway and Switzerland have the most nurses per capita — over 17 per 1,000 people. The world faces a shortfall of 13 million healthcare workers by 2035. The Philippines trains the world's most export nurses. Sub-Saharan Africa has less than 1 nurse per 1,000 people in many countries.

The United States was the largest country donor of official development assistance in the OECD's preliminary 2024 data, while Norway, Luxembourg, Sweden and Denmark led on ODA as a share of national income.