By Doug Webber of FiveThirtyEight –
The rapid increase in the cost of college in recent decades — and the associated explosion in student debt, which now totals nearly $1.3 trillion nationally — is all too familiar to many Americans. But few understand what has caused the tuition boom, particularly at the public institutions that enroll roughly two-thirds of all students at four-year colleges.
The overarching message is that there is no single cause of the tuition boom. The reason for rising costs differs based on the type of institution and the state it’s in, and even varies over time. But, at least among public institutions, the dominant factor has been a steady decrease in support for higher education on the part of state legislatures.