Political History: Democracy Shaped By Trade

Economics drive politics.

Author Matt Ridley points to the accounts in history where democracy had been shaped by trade (in agriculture).

From the Wall Street Journal, (bold highlights mine)

Trade is much older than farming: Australian aborigines used to trade stone axes for sting-ray barbs over long distances, showing that hunter-gatherers can benefit from exchange. The advent of agriculture accelerated the trend toward specialization—but not everywhere. In temperate zones, farming encouraged trade, but in the tropics subsistence farmers often ate and wore their own produce.

I have been pondering why this difference emerged since reading a fine new paper by Stephen Haber of Stanford and Victor Menaldo of the University of Washington. They argue that, historically, stable democracy has depended on the growing of grain, because it is a tradeable commodity and is best grown on a small scale. Therefore, they say, the parts of the world suited to grain-growing have developed the institutions that build equitably distributed human capital, and hence democracy. This explains why democracy flourishes where rainfall is modest.

Their idea has just as much to say about economic development as about politics. The key is perishability. Where farmers produced food that could be stored, especially cereal grain and pulses (peas and beans), trade flourished, specialization increased and cities emerged, filled with manufacturers, soldiers and priests who swapped their outputs for the grain supplied by the farmers.

Tropical fruit, however, was harder to store and therefore harder to trade, as were other tropical crops like cassava root, which rots after a week or so. This goes some way to explaining the lack of cities in the tropics before the industrial era: You simply cannot ship bananas to an urban elite in the way you can ship grain. Hence the invention of olive oil and wine as tradeable versions of olives and grapes. The ancient civilizations around the Mediterranean depended heavily on trading networks that brought grain, oil and wine to cities.

Read the rest here