Hello, I am hoping to get some help with the following questions:

Identify the three main types of regional trade agreements and give an example of each. Make sure you explain why each example fits the category you put it under.

Explain what an economy of scale is and give a specific example of one time an economy of scale benefited a country or individual company.

Why is the European Union an optimal currency area?

Which country do you think benefited the most from NAFTA? Why?

Thanks so much!