NEW YORK (Reuters) - The dollar dipped on Wednesday as risk sentiment improved and as investors focused on rising commodity prices and when global central banks are likely to begin hiking interest rates to fend off persistently high inflation. The greenback hit a one-year high against a basket of other currencies last week as market participants ramped up bets that the Federal Reserve will raise rates sooner than expected to quell rising price pressures. Those bets have faded, however, while investors are pricing for even more aggressive rate increases in other countries and as commodity-linked currencies including the Canadian and Australian dollars outperform. “When it comes to central banks, there’s a lot of aggressive pricing out there,” said Bipan Rai, North American head of FX strategy at CIBC Capital Markets in Toronto, noting that the market is likely overstating how quickly rate hikes will come. The dollar index fell 0.24% to 93.57. Rai expects the dollar may outperform if investors pare back rate hike expectations in other countries, though “that’s something that’s going to take some time to correct.” “When push comes to shove, given the underlying fundamentals in the United States, which are still very constructive for growth, we think the Fed is probably going to be the central bank that raises rates over the course of the coming years at a bit of a more aggressive clip than the market is pricing in now,” Rai said. Market participants are pricing for the Fed to raise rates twice by the end of 2022. Fed Governor Randal Quarles on Wednesday said that while it is time for the Fed to begin dialing down its bond-buying program, it would be premature to start raising interest rates in the face of high inflation that is likely to recede next year. The Fed also said in its latest Beige Book that the U.S. economy grew at a “modest to moderate” rate in September and early October, as the latest surge of COVID-19 cases crested and began to recede. ING FX strategists said in a client note that the dollar’s recent decline could be due to a combination of markets closing long-dollar positions and “a benign risk environment, where a strong U.S. earnings season has continued to offset inflation/monetary tightening concerns.” “At this stage, it looks like the dollar is lacking some catalysts to contain the ongoing correction, and any support to the greenback may need to come from a cool-off in the recent risk-on mood in markets,” ING said. The Australian dollar, seen as a liquid proxy for risk appetite, gained 0.60% on the day to $0.7522, the highest since July 7. The New Zealand dollar rose 0.73% to $0.7205, the highest since June 11. Reduced demand for safe-haven assets saw the dollar hit a four-year high of 114.67 versus the yen overnight, before retracing to 114.27. The Canadian dollar was higher on the day after the country’s annual inflation rate accelerated to an 18-year high in September, putting the focus on the Bank of Canada ahead of a rate decision next week. The greenback dropped 0.35% against the loonie to CAD$1.2317. The British pound gained 0.30% in the day to $1.3831 after data showed that British inflation slowed unexpectedly last month. The figures did little to change expectations that the Bank of England will become the world’s first major central bank to raise rates. In cryptocurrencies, bitcoin hit a record high of $67,017, a day after the first U.S. bitcoin futures-based exchange-traded fund began trading. ======================================================== Currency bid prices at 3:08PM (1908 GMT) Description RIC Last U.S. Close Pct Change YTD Pct High Bid Low Bid Previous Change Session Dollar index 93.5720 93.8060 -0.24% 3.991% +93.8800 +93.5370 Euro/Dollar $1.1653 $1.1632 +0.18% -4.63% +$1.1658 +$1.1617 Dollar/Yen 114.2700 114.4000 -0.19% +10.55% +114.6950 +114.0800 Euro/Yen 133.17 133.06 +0.08% +4.92% +133.4800 +132.7500 Dollar/Swiss 0.9190 0.9230 -0.44% +3.87% +0.9252 +0.9187 Sterling/Dollar $1.3831 $1.3790 +0.30% +1.24% +$1.3834 +$1.3743 Dollar/Canadian 1.2317 1.2363 -0.35% -3.25% +1.2367 +1.2308 Aussie/Dollar $0.7522 $0.7477 +0.60% -2.22% +$0.7522 +$0.7465 Euro/Swiss 1.0710 1.0733 -0.21% -0.90% +1.0765 +1.0706 Euro/Sterling 0.8424 0.8431 -0.08% -5.74% +0.8460 +0.8424 NZ $0.7205 $0.7154 +0.73% +0.36% +$0.7208 +$0.7147 Dollar/Dollar Dollar/Norway 8.3095 8.3525 -0.51% -3.23% +8.4120 +8.3065 Euro/Norway 9.6855 9.7187 -0.34% -7.47% +9.7789 +9.6828 Dollar/Sweden 8.5844 8.6203 -0.26% +4.73% +8.6361 +8.5818 Euro/Sweden 10.0038 10.0295 -0.26% -0.72% +10.0456 +10.0030 Reporting by Karen Brettell; Additional reporting by Elizabeth Howcroft in London; Editing by Steve Orlofsky and Will Dunham