Like the precious metals markets, the copper market has been able to overcome weakness during overnight trading. Some traders have suggested that the global macro economic outlook is only minimally improved, as developments from the Euro zone last night may not have been that positive. Other traders feel that the copper market has found support from suggestions in a private German economic survey, that the German economy might be able to avoid a steep decline in reaction to the recent EU summit. The copper market may have seen strong demand for a Spanish debt auction overnight as a positive factor, and many traders are hopeful that the US retail sales figures provide another boost for prices. News that a Zambian strike had ended and that the Euro zone crisis could still resurface at any time were widely seen as negative factors for copper.