UK retailer Asda, a subsidiary of US giant Wal-Mart, is hoping to boost its temporary Christmas workforce by hiring more older staff. Many companies are coming around to the idea that older staff may be a considerable asset to their workforce, and Asda is far from the first to target the grey market. The company said its is expecting to create an average of 39 extra temporary jobs over the busy Christmas period at each store, or about 10,000 jobs nationwide.