French governments are famous for promoting national champions, notably by preventing foreign takeovers, but in 2005-2006, the Villepin administration allowed the New York Stock Exchange to take control of Euronext, a French-led pan-European company that includes the Paris Bourse. By mapping the...

"Over the course of the nineteenth century, the struggles of Paris Bourse to manage counterparty risk revealed the awkward choices that face derivatives exchanges. Shortly after it was founded, the stock exchange, primarily a forward market, instituted a mutual guarantee fund to prevent broker...