Most of the week will be barren as investors head for the Christmas holidayAs expected, Christmas week will be a quiet one, with no earnings on deck and only a handful of economic reports scheduled. Several of the data releases will be ones previously delayed by the U.S. government shutdown, which lasted from Oct. 1 through Nov. 12, including third quarter gross domestic product (GDP) numbers.Earnings are finished for the year, with the next reports scheduled for Tuesday, Jan. 6.Below is the schedule of key ...