One of the ways we look at inflation around the world is by taking a simple average of 33 different countries year-over-year percentage change in CPI. By this measure, in January, year-over-year change in World CPI fell to it's lowest level since November 2009. According to the Citi Inflation Surprise Index, the majority of the developed and emerging world are experiencing negative inflation surprises. The exceptions appear to be Japan and Australia.