Airlines, hotels, retail shops and restaurants have begun to reopen in parts of the country hardest hit by the pandemic, and there are signs of life in the housing market again. Yet economists aren’t sure how much of that activity is being fueled by stimulus checks. The total number of home loans in forbearance fell to 8.48% as of June 14, from 8.55% in the prior week, according to a survey from the Mortgage Bankers Association. And what people are buying may be shifting. A survey by Coresight Research found people are hoarding fewer goods for the pantry, and spending more on clothing as lockdowns lift.