Blame for the recent financial crisis and subsequent recession has commonly beenassigned to everyone from Wall Street firms to individual homeowners. It has been widely argued thatthe crisis and recession were caused by "greed" and the failure of mainstream economics.In Getting It Wrong, leading economist William Barnett argues instead that therewas too little use of the relevant economics, especially from the literature on economicmeasurement. Barnett contends that as financial instruments became more complex, the simple-summonetary aggregation formulas used by central banks, including the U.S. Federal Reserve, becameobsolete. Instead, a major increase in public availability of best-practice data was needed.Households, firms, and governments, lacking the requisite information, incorrectly assessed systemicrisk and significantly increased their leverage and risk-taking activities. Better financial data,Barnett argues, could have signaled the misperceptions and prevented the erroneous systemic-riskassessments.
When extensive, best-practice information is not available from thecentral bank, increased regulation can constrain the adverse consequences of ill-informed decisions.Instead, there was deregulation. The result, Barnett argues, was a worst-case toxic mix: increasingcomplexity of financial instruments, inadequate and poor-quality data, and declining regulation.Following his accessible narrative of the deep causes of the crisis and the long history of privateand public errors, Barnett provides technical appendixes, containing the mathematical analysissupporting his arguments.
