A longer version of the article will appear in the Frankfurter Algemeine Zeitung on December 5th, 2011
Book V of Aristotle’s Politics describes the eternal transition of oligarchies making themselves into hereditary aristocracies – which end up being overthrown by tyrants or develop internal rivalries as some families decide to “take the multitude into their camp” and usher in democracy, within which an oligarchy emerges once again, followed by aristocracy, democracy, and so on throughout history.
Debt has been the main dynamic driving these shifts – always with new twists and turns. It polarizes wealth to create a creditor class, whose oligarchic rule is ended as new leaders (“tyrants” to Aristotle) win popular support by cancelling the debts and redistributing property or taking its usufruct for the state.