Shared resources do not always get ruined — communities can manage them.
Elinor Ostrom studied fisheries, forests and irrigation systems worldwide and found many communities had managed shared resources well for generations, using clear local rules and monitoring.
Why it matters: In 2009 she became the first woman to win the Nobel Prize in Economics.
Small loans without collateral changed millions of lives.
In 1976 Muhammad Yunus began lending small sums to poor villagers in Bangladesh, mostly women, without collateral. Grameen Bank grew from this; he and the bank shared the 2006 Nobel Peace Prize.
Why it matters: It showed that poor borrowers are creditworthy when lending is designed around their lives.
Grameen Bank — Muhammad Yunus (1976) Nobel Peace Prize 2006
Ten workers making pins showed why specialisation matters.
Adam Smith described a pin factory where splitting the work into about eighteen steps let ten workers make some 48,000 pins a day — far more than each could make alone.
Why it matters: Division of labour explains much of modern productivity, and why trade between specialists pays.
The Wealth of Nations — Adam Smith (1776) Book I, Chapter 1