WASHINGTON (AP) — Finance officials from the world's major economies are searching for the right mix of policies to bolster a still-weak global recovery nearly six years after the Great Recession while confronting a range of new threats from a soaring U.S. dollar to a big drop in oil prices.

The financial officials from the Group of 20 nations were also expressing concerns about potential market instability once the Federal Reserve starts increasing a key interest rate which has been at a record low near zero since late 2008.