The developed world has not shaken off the risk of sliding into a deflation trap, experts warned after new figures showed that prices in both the eurozone and the US are falling. Consumer prices in America slipped by 2.1pc in the year to July, according to official data released yesterday. It coincided with Eurostat figures showing that the eurozone's consumer price index dropped by 0.7pc in the past year, compared with deflation of 0.1pc in June. The figures underline concerns that despite the sharp rebound in a variety of economic indicators, and despite news that France and Germany have both...