What it is
Economics studies how people use scarce resources: what gets made, who gets it and how prices coordinate millions of decisions nobody plans centrally.
Money sits at the centre. Central banks describe it as a special kind of IOU that everyone trusts. The world economy measured in money has grown more than eighty-fold in nominal terms since 1960.
World GDP, 1960–2024 (current US$)
The size of the world economy in money terms; not adjusted for inflation.
Current prices World Bank data, last updated October 2026.
Source: World Bank Open Data
Ideas to carry
- 1
Division of labour
Specialising and trading lets a group produce far more than its members could alone.
- 2
Money is trust
Coins and numbers on a screen work only because people expect others to accept them.
- 3
Prices are signals
A price carries information about scarcity that no single planner holds.
Established What we know
- Adam Smith opened The Wealth of Nations (1776) with a pin factory, showing how dividing labour multiplies output.[1]
- The Bank of England describes money as a special kind of IOU that everybody in an economy trusts.[2]
- World GDP was about $112 trillion in 2024 in current US dollars, up from about $1.4 trillion in 1960.[3]
Interpretation The older lens · Greco-Roman myth
Mercury was god of merchants, messengers and thieves alike: the ancients already saw trade, information and trust as one domain.
Reading
- 1776The Wealth of NationsAdam Smith
- 1945The Use of Knowledge in SocietyFriedrich Hayek
- 2011Debt: The First 5,000 YearsDavid Graeber
Money: just a shared belief
Me at the till: believing very hard
Connected subjects, projects and writing
- EntrepreneurshipSubject · Creation
Established Ventures live or die by prices, costs and demand.
- Ownership and capitalSubject · Civilization
What it costs to own a thing, how shared resources can be governed, and what stays scarce when making gets cheap.
- History and institutionsSubject · Civilization
Laws, states, markets and the agreements that let eight billion strangers cooperate.
- TakeInProject · Creation
Own-brand online ordering for independent takeaway restaurants: orders arrive on the restaurant's own site and print in the kitchen.
- An opportunity engineExperiment · Intelligence
Taking an open-source research framework built for trading and generalising it, so trading becomes one plugin among several.
Sources
- The Wealth of Nations, by Adam Smith Project Gutenberg, 1776. Checked 5 Nov 2026.
- What is money? Bank of England. Checked 5 Nov 2026.
- GDP (current US$), World — NY.GDP.MKTP.CD World Bank Open Data. Checked 5 Nov 2026.