In addition, he has argued for years that hybrids are not just a temporary solution, but can provide an optimal balance of cost and flexibility.

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Mr Wyplosz concludes that low rates of inflation carry a significant unemployment cost, and that the optimal rate may be higher in Europe than it is in America.

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Appropriate military strength that is cost-efficient is an optimal position.

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With optimal matching, cost is significantly reduced.

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Given the high fixed cost base related to operating a steel mill, margins will also decline if a plant is not operated at optimal capacity.

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