The rising price of fuel is largely a result of an imbalance between supply and demand.

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"As a result, there's an imbalance between supply and demand, which tends to force prices up, " she adds.

BBC: Business

There is such a unique market opportunity created by the stark imbalance between supply and demand that social entrepreneurs have enormous incentive to invest in clean water.

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The Fed would use the discount rate rather than the federal funds market to supply or withdraw credit in response to any imbalance between supply and demand for it.

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When prices for commodities rise, it is usually because of either a change in the cost of bringing the product to market (increasing fuels could do that), the cost of capital, or an imbalance between supply and demand.

FORBES: Production Of Iron Ore, Copper, Coal Falling, Is Goldman Sachs Wrong?

Risk spreads could expand in 2011 as more new issues come to market and the imbalance between already strong demand and increasing supply narrows.

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