The mention of the Waffle House Index reminds me of the Big Mac Index used to compare currencies. The idea is that a Big Mac, being something of commodity made

The mention of the Waffle House Index reminds me of the Big Mac Index used to compare currencies. The idea is that a Big Mac, being something of commodity made from common ingredients, should cost the same everywhere in the world. If it is significantly more expensive or cheaper in another currency, than that currency must be over or under valued. https://en.wikipedia.org/wiki/Big_Mac_Index https://en.wikipedia.org/wiki/Big_Mac_Index