Egg McMuffin sales predict economic growth

Let's follow this conversation to its logical conclusion: <a href="http://www.slate.com/blogs/moneybox/2012/05/01/why_big_macs_are_cheap_in_argentina.html" rel="nofollow">http://www.slate.com/blogs/moneybox/2012/05/01/why_big_macs_...</a>

Quick, everyone buy an Egg McMuffin!