Regional economic integration

Write a literature review on regional economic integration. You are to select ONE country that participates in Economic Union and ONE regional integration that your home-country participates in and discuss the backgrounds of these integrations. Critically analyze and compare how these regional integrations affect or influence the participant countries. You should justify your point(s) with supporting statistics, evidence or arguments. You may include your personal view or opinion in the write up. 

Assuming that you are eligible to vote on Brexit, would you have voted to remain or leave the EU? Justify your answer.