The Globe and Mail reports in its Friday edition that the Canada-United States trade war is prompting shoppers to consider buying Canadian, leading grocery retailers to promote domestic products and highlight their Canadian roots. The Globe's Susan Krashinsky Robertson writes that this sentiment, however, isn't yet reflected in sales trends, according to Empire executives. Chief executive officer Pierre St-Laurent says while customers are interested in supporting Canadian businesses, their purchasing decisions are also being driven by "value, quality and convenience." The escalating tensions with Canada's largest trading partner are contributing to heightened caution among shoppers. Mr. St-Laurent says the market environment is challenging, with consumers focused on value and affordability due to fuel price volatility and trade uncertainties. He says retailers in North America, including Canada, are reporting a more cautious customer environment. Empire's sales grew to nearly $8.5-billion in the first quarter ended Aug. 1, up 2.6 per cent compared with the same period last year. Empire sales grew in both its discount and conventional grocery stores. It has committed to building more off-price locations in response.