"One barrier to raising revenues is the reluctance of legislators on both sides of the aisle to place additional taxes on Pennsylvania’s poor and middle-class. That reluctance is well motivated. Over the last 25 years, incomes for the richest Pennsylvanians have been rising fast while incomes for all other Pennsylvanians have been stagnant. Despite that, Pennsylvania’s tax system is profoundly unfair, as it taxes those with the lowest incomes at a rate triple those with the highest incomes. Moreover, the structural deficit is not a result of higher spending but, rather, of cuts to taxes, especially corporate taxes, that fall on the very rich."