Blue chips in the green at midday
London's FTSE 100 was higher at midday, although Burberry suffered, ahead of US inflation figures and the latest round of central bank interest rate calls.The FTSE 100 index traded up 49.96 points, or 0.6%, at 8,231.43. The FTSE 250 was 76.94 points higher, 0.4%, at 20,570.94, and the AIM All-Share was up 2.42 points, or 0.3%, at 746.42.The Cboe UK 100 was up 0.7% at 823.23, the Cboe UK 250 added