While the higher levies have been the subject du jour for months, they are only just filtering through to the checkout. And more hikes will come in the final three months of the year, when holiday shopping gets under way.The Golden Quarter, so called because it is crucial to companies’ fortunes, is always a stand-off between retailers trying to sell as much full price merchandise as possible, and shoppers seeking deals. With stores needing to pass on the higher import costs, the confrontation will be tense ...