Under Illinois revenue equalizer school finance formula, school districts with the same operating tax rate are guaranteed the same operating expenditure level. However, with other factors held constant, it is harder for relatively low-income districts to pass referenda to raise their operating tax rates in order to gain a higher operating expenditure level under the revenue equalizer formula. This publication contains two articles that discuss two alternative school finance mechanisms that are intended to provide equal access to available resources for relatively low-income districts. Chapter 1, which was written by J. Dan Hou, covers a study investigating the effects of four income weightings applied to assessed valuation on the distribution of Illinois state aid to education. Chapter 2 covers a study conducted jointly by J. Dan Hou and Warren B. Carson, which was designed to compare the effects of three separate income weightings applied to operating tax rates on the distribution of Illinois state aid to education. (Author/JG)