NBC news has a piece of a story on minimum wages, listing how long a minimum wage worker has to labor to buy a Big Mac meal:
http://www.nbcnews.com/business/time...mac-6C10945727
Wikipedia has the full story, a list of minimum wage by country (not pretty!):
http://en.wikipedia.org/wiki/List_of...ges_by_country
As it turns out, Amazon's US warehouse wages are in the top tier, right there with New Zealand and France.
The only countries with a significantly higher minimum wage are Australia and, amusingly... Luxembourg.