The Economist's Interactive Big Mac Index

Check out the Interactive Big Mac Index that we talked about in class, courtesy of The Economist.

The page lets you play with the variables a bit. You can even download the time-series data in Excel format if you want to play with it.

For participation credit, share why you think certain currencies are over- or undervalued, why you might think the Big Mac Index is not a proper measure of currency valuation, or why you think currency valuations may fluctuate over time.