Published by Jamie JemmesonThe US dollar could be boosted in foreign exchange trading as in July retail sales in the nation may have risen by the biggest margin in four months.According to a Bloomberg News survey with 81 economists, June's 0.1 per cent increase is expected to be better by a 0.5 per cent improvement last month.The actual data is due to be unveiled by the Commerce Department this morning (August 12th) in Washington DC.Nationwide Mutual Insurance in Columbus, Ohio's chief economist Paul Ballew said: "You take autos out and we'll probably be very slightly up. We're not expecting a strong bounce-back in consumer spending any time soon."He added the poor levels of car sales seen in quarter two are "inching back up".Meanwhile, in the UK, the latest figures from the Confederation of British Industry found less optimism is felt at present than the previous quarter by 28 per cent of businesses.For more information on foreign exchange treasury services and risk management, visit our Corporate FX site