The dollar has experienced a spectacular increase these last months against all the major currencies in the world. For a year, it has appreciated itself by 15.2% against the euro and by 17.6% against the sterling, an increase which slowed these last days after the turnaround of the British government which has abandoned its general taxes cut policy after having announced it some weeks before. The fall of the yen is spectacular: -23.3% when the Chinese currency, the Yuan has better resisted; the cause of the dollar appreciation is well identified, but the spreads between currencies would ...