Accounting conventions usually leave some room for judgment, which governments may be tempted to take advantage of, especially when fiscal rules bite or threaten to do so. The European experience over the past decade -- documented here in great detail -- illustrates that fiscal gimmicks come in...

During the first two years of monetary union, the euro's weakness surprised most market participants. Explanations proliferated ranging from fundamentals such as differences in growth prospects to psychological factors such as herd behaviour, but no single story fully accounts for the observed...