欧州為替相場メカニズム
Brown's actions have attracted considerable criticism, particularly concerning his timing, his decision to announce the move in advance, and the use of an auction. The decision to sell gold at the low point in the price cycle has been likened by Quentin Letts to the mistakes in 1992 that led to Black Wednesday, when the UK was forced to withdraw from the European Exchange Rate Mechanism, which HM Treasury has estimated cost the UK taxpayer around £3.3 billion.