Some individual share prices dropped to mere pennies in price, forcing the various exchanges to impose “broken” or canceled trades on something like 27 percent of all transactions. Then many prices immediately recovered, although not all the way to previous levels. Incredulity toward the validity of registered prices struck at the heart of the economists’ pretences to expertise. Such behavior belied all bedrock neoliberal claims of the efficacy of the marketplace in converting information into valid prices.

Philip Mirowski, Never Let a Serious Crisis …, loc. 547