Speaking earlier at the summit, UN Secretary General Ban Ki-moon said he believed an agreement was in sight, with recent moves by some countries a positive step to cutting emissions.

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We continue to believe Alcoa will be a big beneficiary of an improving economy as the company's products are used in a wide array of industries and its cost cutting measures will have a positive impact on earnings.

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Cutting the minimum capital requirement is a small positive step.

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Also, the series of cost-cutting measures implemented by the bank are beginning to show a positive impact on the bottom-line.

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Short-term margins did improve, going from negative to positive, which is great, but almost all attributable to cost cutting, not growth.

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He said Scotland needed a positive response to calls for an expansion of capital investment, adding cutting capital budgets by 33% "cannot be the right economic medicine at this time".

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