July copper prices have posted large gains this morning, which may be due in large part to improving sentiment from the Asian markets. Copper apparently found support from ideas that China might implement a stimulus program specifically targeting their auto sector. Therefore, copper may be seeing a partially supportive macro economic environment this morning but some traders feel to sustain that upward momentum may require some positive results from today's US economic data. Other traders feel that the big question for copper this week will probably be the market's assessment of the direction of the US economy after the monthly payroll readings on Friday morning.