Advocates of fair value accounting believe that fair valuesprovide more relevant measures of assets, liabilities, andearnings than do historical costs. These advocates assertthat fair value accounting better reflects underlying economicvalues. The advantages of this method—and thecorresponding...

Traditionally, regulation of banks has focused on the riskentailed in bank loans. Loans are typically nontradedassets. In recent years, another component of bank assetshas become increasingly important: assets actively tradedin the financial markets.1 These assets form the “tradingbook” of a...