In 2008Q4, all three were close to 2.6 per cent. CPI-trim started to ease in 2009Q1, bottoming out at 1.2 per cent in 2010Q1. CPI-common started a less pronounced descent a quarter later. This is likely because excess capacity has a larger impact in the near term on CPItrim than it does on CPI-common.
Coping successfully with these challenges continues to be vital to fostering sustainable growth and development in many parts of the world and is hence a matter of global interest. BIS Review 31/2007  5