International economics question

[Sakina]

Hi!

I have no idea if this question is relevant here, but I'll aks anyway...
My question is how and why productino costs may vary in different countries, how does this relate to international commerce?

Hope someone can help me
Thanks

[econ]

Differences in production costs would motivate trade. For example, if the costs of producing cars were cheaper in country A, you'd produce cars in country B and export them to country B.