1.5 From Barter to Money
The evolution of trade from direct barter to commodity money and beyond.
From Barter to Money
Before money existed, people engaged in direct barter — trading goods and services directly. But barter has a major problem: you need a "double coincidence of wants" — both parties must want what the other has.
Before money existed, people engaged in direct barter — trading goods and services directly. But barter has a major problem: you need a "double coincidence of wants" — both parties must want what the other has.
This inefficiency led humans to converge on commodity money — physical goods that were widely desired, durable, divisible, and portable. Salt, cattle, shells, and eventually precious metals like gold and silver became money.
The best monies emerged organically through market selection, not by government decree. They were the commodities that best satisfied the properties of money: durability, portability, divisibility, uniformity, acceptability, and scarcity.
Gold and silver won this evolutionary competition for thousands of years because they were the hardest to produce (scarce), easy to verify, and nearly impossible to destroy.
Understanding why certain commodities became money helps us understand why Bitcoin is positioned to become the next evolution of money in the digital age.