Dollar dips after four-day streak of gains, yen holds near 40-year low

NEW YORK, July 22 : The dollar dipped from a one-week high on Wednesday after four straight daily advances, while the yen recovered slightly from its weakest level in nearly four decades as traders gauged the likelihood of intervention from Tokyo and the chances of faster rate hikes by the Bank of Japan.The dollar has been rising in recent days as increased tensions in the U.S.-Iran war have caused a reversal in oil prices and again fanned inflation fears.Oil prices touched their highest in almost six weeks, with U.S. crude last up 3.28 per cent to $87.11 a barrel and Brent at $94.34 per barrel, up 3.66 per cent, as concerns about supply disruptions increased. Four more tankers changed course in the Red Sea on Wednesday after Iran-aligned Houthis in Yemen threatened the southern route out,