If the overall supply of rubber goes up, what will probably happen to the price of rubber balls?
does the price for up or down?

What is the most likely result of specialization in producing products a and b? a) japan stops producing and using product b. b) the u.s. stops producing and using product a. c) the increased output means the u.s. and japan can trade excess units of products a and b. d) specialization means the u.s. will trade 800,000 units of product b for 60,000 units of product a.