From the Wall Street Journal:

Fast-growing emerging nations are taking increasingly aggressive actions to beat back rising food prices as they grow more worried of threats to stability if prices don't start to retreat.

Developing-market governments have unveiled a laundry list of measures—including price caps, export bans and rules to counter commodity speculation—to keep food costs from disrupting their economies as price spikes that some had hoped were temporary have stretched into the new year. Some economists worry that any further supply shocks could push prices even higher, triggering a food-price crisis like the one the world witnessed in 2008, when higher food costs led to violent unrest across the developing world.

Emerging Nations Tackle Food Costs