In China, 1/2 liter of beer costs 9 minutes of work. To calculate how many minutes of work it takes to buy beer in 150 countries, Swiss bank UBS researchers divided the median wage in that country by the price of 1/2 liter from a retailer. Their results?
If you want to predict Olympic medal winners, you might look at economic data. A report on the Olympics from Goldman Sachs suggests that nations with a superior economic growth environment will increase their share of Olympic gold medals in London.