Will the prices of commodities rise in the year ahead?

Oil prices have hit their highest level since 2008, with New York crude just under $92 a barrel.

They have been creeping higher in 2010, driven by booming demand from the developing world and a heatwave in Russia which helped push up the cost of everything from wheat to onions.

Economists Christian Keller from Barclays Capital, Ken Rogoff from Harvard University and Ken Wattret from BNP Paribas, gave their thoughts about the price of commodities and food in the year ahead.