Pennsylvania Public School Employees Retirement System, Harrisburg, has approved a new asset allocation. The new mix is: domestic equity, 45%; international equity, 20%; fixed income, 25%; real estate, 5%; and private equity, 5%. John Lane, CIO, said the $45 billion system was still drafting 1998 year-end numbers and could not comment on whether the new allocation would prompt manager searches. The systems asset mix at the end of June was: domestic equities, 45%; international equities, 15%; fixed income, 19.8%; cash, 2%; private equity, 1.5%; real estate equity, 6.2%; and global asset allocation, 10.5%, according to its Web site. Wilshire consulted.