The "no significant differences" phenomenon has contributed to a backlash against the use of information technology in education, particularly among administrators and educational policy-makers. There are many other influences that contribute to this backlash. The high monetary cost of bringing technology into schools is a factor, coupled with the fact that these costs are not one-time investments and frequent upgrades are required in order to stay up-to-date. The present poor state of the global economy makes the high cost of technology especially troubling to lawmakers, administrators, teachers and the general public.