AZnomicsIn the same year America declared independence, a Scottish professor published a book that would shape every economy on earth. Adam Smith's The Wealth of Nations introduced the idea that free markets, guided by self-interest, produce collective good — as if by an invisible hand.
Smith argued that when a baker makes bread to earn money — not out of charity — society still gets fed. Self-interest, channelled through markets and competition, produces outcomes that no central planner could design. This was radical. Most people assumed economies needed kings or governments to direct them.
Smith opened the book with a pin factory. One worker making pins alone produces 20 a day. Ten workers each doing one step of the process produce 48,000. Specialisation multiplied productivity by 2,400x. This insight explains the industrial revolution, global trade, and why your phone is made from components across 40 countries.
72 years later, Karl Marx published The Communist Manifesto. He agreed markets were productive but argued they were also exploitative — workers created the value but owners captured the profit. That tension between Smith and Marx defined the entire 20th century, splitting the world into capitalist West and communist East.
Every market economy on earth — the US, Europe, Japan, modern China — is built on Smith's foundation. The debate isn't whether markets work. It's how much to regulate them.