Pound dollar to trade lower. Pair undermined by USD short-covering before weekend and G20 meeting; surprise 0.2% drop in UK September retail sales (vs forecast for 0.7% gain); concerns over negative impact of government''''s tough austerity program on UK economy; comments from UK chancellor Osborne and MPC member Miles that further QE monetary stimulus may be needed. But GBP/USD losses tempered by expectations of more QE measures from U.S. Federal Reserve. GBP/USD daily chart negative-biased as MACD bearish, stochastics falling from overbought, 5-day moving average staged bearish crossover against 15-day. Support at 1.5684 (yesterday''''s low), then at 1.5652 (Wednesday''''s low, matching 55-day moving average); breach would expose downside to 1.5501 (Sept. 21 low), then 1.5434 (100-day moving average), 1.5343 (Sept. 10 low, near 200-day moving average) and 1.5294 (Sept. 7 trough). Resistance at 1.5788 (hourly chart); breach would expose upside to 1.5848 (yesterday''''s high), then 1.5878 (Wednesday''''s high), 1.5940 (Tuesday''''s high), 1.6003 (Monday''''s high) and 1.6104 (8-month high set Oct. 15).