Gold hovered near a two-week high on Wednesday, helped by hopes central banks will ease monetary policy in a bid to nurture a fragile recovery in the global economy.

The European Central Bank is expected to cut interest rates on Thursday in the wake of a string of weak economic data, a move that would likely support gold as it typically benefits from a low interest rate environment.

"Investors are pinning their hopes on an ECB rate cut and the rising possibility that quantitative easing may be back on the cards for the Fed," said Chen Li, an analyst at Jinrui Futures in the southern Chinese city of Shenzhen.

Gold will be further underpinned if hopes for another round of easing by the US Federal Reserve are enhanced by any disappointment over US non-farm payrolls data on Friday, she added.

Spot gold was little changed at $1,616.68 an ounce, after rising more than 4 per cent since last Friday. It hit a two-week high of $1,624.70 in the previous session.

The US gold futures contract for August delivery edged down 0.3 per cent to $1,617.30.

Some analysts are less sanguine about how much impact another round of quantitative easing would have on the global economy, however.

"We worry that looser money will not have the desired effect, as its impact gets diluted each time it is used, particularly when rates are close to zero to begin with," Ed Meir, an analyst at INTL FCStone, wrote in a research note.

Nonetheless, investors are likely to bid the markets higher over the short term if the Fed once again takes such a step, he added.

Spot platinum rose to a two-week high of $1,485.75 an ounce, on course for a fourth straight session of climbs. Spot palladium gained 1 per cent to $600.25, extending a nearly 4-per cent rally in the previous session after data showed unexpectedly strong US auto sales in June.

Platinum group metals, including platinum, palladium and the lesser-known rhodium, are widely used to produce emission-reducing autocatalysts.

North American consumed nearly a quarter of the palladium in global autocatalyst production in 2011, and 12 per cent of the platinum used in autocatalysts, according to refiner Johnson Matthey. – Reuters