Corn is the subject of a new round of speculation by hedge funds and other investors, with prices of the crop at a two-year high.

The global wheat shortage has led to corn increasingly being used in animal feed, pushing up the crop's price to more than $5 a bushel.

Hedge funds and other speculators are now betting that the price will continue to rise, according to the Guardian.

A report by Bank of America Merrill Lynch claimed total investments in corn futures were now worth almost £7bn – their highest for five years.

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