Even if it's agreed that there is a shared interest in reaching a deal, that's a big imbalance with which to start out on negotiations.

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Plus, the big imbalance of supply and demand for solar panels over the past two years prompted factory closures and bankruptcies, and many more manufacturers are sure to disappear over the next three years.

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Its external imbalance has narrowed, but a big internal imbalance remains.

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In order to remedy the U.S.-Japan trade imbalance in 1985, the big five industrial nations agreed to depreciate the dollar against the yen.

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Economist Peter Morici, for example, suggests dynamic job growth will be sparked by increasing domestic oil production, tackling the trade imbalance with China, relaxing regulations for big businesses and curbing health care mandates.

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