According to a study by the Center for Budget and Policy Priorities, tuition at public colleges and universities has increased by at least a quarter over the past decade, more than that of private universities. Deep state funding cuts have had major consequences for public colleges and universities. States (and to a lesser extent localities) provide roughly half of the revenue that can be used to support instruction at these schools. When this funding is cut, colleges and universities look to make up the difference with higher tuition levels, cuts to educational or other services, or both. The study states that responsible reinvestment can only occur, however, if policymakers make sound tax and budget decisions.
Mitchell, M., & Leachman, M. (2015). Years of cuts threaten to put college out of reach for more students. Washington, D.C.: Center on Budget and Policy Priorities. https://www.cbpp.org/research/state-budget-and-tax/years-of-cuts-threaten-to-put-college-out-of-reach-for-more-students