Who is Adam Smith?

Born on June 5, 1723, in Kirkcaldy, Scotland, Adam Smith earned his professorship at Glasgow University, where he taught moral philosophy. His seminal work, “The Wealth of Nations” (1776), revolutionized economic thought.

Key Economic Concepts

Smith’s work introduced:

Invisible Hand: Markets self-regulate through individual self-interest.
Division of Labor: Specialization boosts productivity.
Free Markets: Competition drives innovation and efficiency.

The Pin Factory

Smith’s most famous illustration of the division of labor is a pin factory. One worker doing every step might make a handful of pins a day. Ten workers splitting the steps, one draws the wire, one straightens it, one cuts it, and so on, can make thousands. That is the whole of The Wealth of Nations in miniature: specialization multiplies output, trade lets everyone share in the surplus, and living standards rise because of productivity, not because of piles of gold. When you hear that economic growth comes from people getting better at making things, this is the example it traces back to.

The Invisible Hand, in Plain English

The invisible hand is the idea that people pursuing their own interest unintentionally serve the public good. The baker does not bake out of charity; he bakes to earn a living, and the town gets bread. Smith’s point was not that greed is good. It was that you do not need a central planner to coordinate an economy if prices carry information and competition keeps sellers honest. For an investor, this is the intellectual case for owning the whole market instead of picking winners: millions of self-interested decisions, aggregated through prices, are hard to beat consistently.