International exchange rate system

In recent years, Greece has had significant economic troubles. How have things been made more difficult by the fact that they use the Euro?In other words, what might they have been able to do differently in the past few years if they still controlled their own currency?Overall, what are the benefits of European Union membership and do they outweigh the negatives for Greece? Why or why not?Make sure you utilize academic journal article(s) to support your answers.