I have always found it interesting to discover which is the richest country in the world. Most people immediately think of the United States for the overall economy, but the reality is quite different when you look at GDP per capita.

Luxembourg is actually the richest country in the world by this metric, with a GDP per capita of $154,910. It's an incredible transformation when you consider that until the mid-1800s it was mainly rural. Today, it dominates thanks to financial services, banking, and an environment that attracts global capital.

But immediately after, you find Singapore, with $153,610 per capita. What strikes me about Singapore is how it transitioned from a developing economy to a global hub in relatively short time. Low corruption, solid governance, a skilled workforce. The port is the second largest in the world by volume. Political stability and openness to foreign investment made the difference.

Then there's Macau with $140,250. A Chinese special administrative region that mainly relies on gaming and tourism. It attracts millions of visitors each year and has one of the best welfare systems in the world.

Ireland rises to fourth place with $131,550. Its journey is interesting — it was protectionist in the 1930s, stagnated in the 1950s, then opened up its economy, joined the EU, and attracted massive foreign investments. Today, it has pharmaceuticals, software, and medical equipment.

Qatar is fifth with $118,760, built on oil and natural gas. It has diversified by investing in tourism, education, health, and technology. Hosting the 2022 World Cup increased its global profile.

Norway, Switzerland, and Brunei follow the list. Norway was the poorest of the three Scandinavian countries before the offshore oil discovery in the 20th century. Now, $106,540 per capita, but also one of the most expensive places to live.

Switzerland, with $98,140, boasts a strong economy, innovation at the top globally since 2015, luxury, and multinational corporations. Brunei heavily depends on oil and gas, accounting for 90% of government revenue.

Guyana has seen rapid growth in recent years thanks to the discovery of offshore oil fields in 2015. Now $91,380 per capita, although the government is working to diversify.

And the United States? In tenth place with $89,680. It is the largest economy in the world in nominal GDP, with Wall Street, Nasdaq, and global financial institutions. The dollar is the world’s reserve currency. It spends 3.4% of GDP on research and development. But it also has one of the highest income inequalities among developed countries, and the national debt has surpassed $36 trillion.

So, which is the richest country in the world depends on how you measure it. If it's overall economy, the USA. If it's prosperity per person, Luxembourg dominates. What I notice is that the wealthiest countries have stable governments, solid financial sectors, business-friendly environments, and a skilled workforce. Some have natural resources, others have built them from scratch with services.