Tuesday saw a significant decline in the value of the US dollar after statistics revealed that US consumer prices were unchanged in October but increased 3.2% year over year, less than anticipated, following a 3.7% increase in September. The most important factor in determining whether the Fed will continue to tighten policy is stable inflation, particularly in light of the unexpected increases in prices in August and September.
Actually, in anticipation of this data release, Fed officials are eager to continue tightening their stance. Therefore, a decline in inflation has a big effect on the dollar when traders start to focus on when the Fed might start reducing interest rates as they recognize the likelihood of a rate hike this year.