When the U.S. Federal Reserve kept rates on hold on Thursday, the central bank explained it made the decision because of the unstable global outlook. However, some investors have criticized the move, warning that the world could soon lose faith in the Fed.
"They (Fed) should not base a rate decision on market volatility, because if you do that, then nobody is going to predict what you're going to do," David Kelly, chief global strategist at JPMorgan Funds, told CNBC Monday.
"Not only does this now put into doubt when the first rate hike will be, but it means when they begin to raise rates, we don't know if something could happen in overseas markets and suddenly they stop raising rates."
In last Thursday's statement, the central bank pointed to concerns over "global economic and financial developments" as reasons to delay a rate hike, but now investors worry whether this is the right decision and whether this would greatly influence the U.S. economy.