Lackluster earnings reports from retailers have raised questions about whether the 2015 holiday shopping season will bring as much of a boost to the US economy as hoped. Apparel giant Gap and kitchen and home furnishings chain Williams-Sonoma late this week became the latest big US retailers to slash their profit forecast for the critical December quarter. The grim forecasts raised doubts about whether an improving US jobs market and lower gasoline prices will translate into a holiday boon for retailers. Consumer spending accounts for about 70 per cent of US economic activity. Earlier in November, Macy’s also gave a dim outlook, citing a drop in sales to foreign tourists because of the strong dollar and the need to sharply discount a glut of cold-weather merchandise that has not moved due to unseasonably warm weather. “I wish I could say it’s going to get ice cold across the country,” Macy’s chief executive Terry Lundgren said in a November 11 conference call with Wall Street analysts. “But you can see in our forecast for the fourth quarter we are not expecting that.” “We’re not selling lumber, so I can’t carry the lumber over to 2016 and sell it at the same price next year. We’re selling fashion apparel, so we’re going to mark that inventory down. That will be good for consumers but it will obviously put pressure on our own margins.” Inventory levels at auto dealers, furniture stores, home improvement centers and department stores all rose in September, lifting the inventory-to-sales ratio in that month to the highest level since May 2009, according to a report by consultancy IHS. IHS projects a 3.5 per cent rise in holiday retail sales in 2015 compared with last year. Growth of 3.5 per cent is “a pretty strong forecast,” said economist Chris Christopher, adding that the economic effects are mixed. Chris Morran, deputy editor at the Consumerist, an independent consumer advocacy site, predicted no major changes to overall sales in 2015. Much bigger than any change in overall sales will be the role of online commerce this holiday shopping season, which kicks off in force the day after Thanksgiving, known as “Black Friday.”The focus on e-commerce means stores are no longer emphasizing opening up on Thanksgiving night and are stretching out the season of holiday promotions. Amazon has had “Black Friday” specials since November 1. Online has been embraced much heartily than before by retail giants like Wal- Mart stores, which this year for the first time will make the more than 90 per cent of its “Black Friday” discounts available online. Fewer in-store specials reduces the chance of dangerous crowds that have sometimes led to serious injury, including the 2008 fatality of one Walmart worker stampeded to death.