As retailers woo shoppers this holiday season, they may not get far with the millennial generation (born between the early 1980s and the early 2000s). Trapped in a weak job market, working for low wages and mired in student loan debts, millennials have less to spend than other demographic groups, despite some recent gains, according to Mark Zandi, chief economist of Moody’s Analytics, a subsidiary of the rating agency Moody’s. Across the board, however, he saw a strengthening job market, increasing wages and a brightening economic outlook. “Millennials … started off in the labor force at a particularly bad time [with a] severe recession and a very weak recovery,” said Zandi. Many who couldn’t get jobs after graduating pursued further education, but accumulated more student loans in the process, he added.…