Have you had any personal experience with exchange rates when you travel? What were they? What did you learn?

One page on each

1) Research the Big Mac Index (see link: http://www.economist.com/content/big-mac-index) Which countries have undervalued and overvalued currencies? Where will the U.S. dollar get you the most value?

2) Have you had any personal experience with exchange rates when you travel? What were they? What did you learn?

3) Oil prices are mentioned a few times in the article. Research the economic impact of falling oil prices (see link: http://knowledge.wharton.upenn.edu/article/beyond-gas-pump-new-world-order-oil/) . What might that mean for the world economy?