Education Amendment 73 Sep 11, 2018 | Education, Taxes The $1.6 billion tax increase proposed by Initiative 73 will negatively impact the Colorado economy, cost private sector jobs, and place a significant tax burden on Coloradans. What if Colorado schools were #1? May 15, 2018 | Education A study measuring the value to the Colorado economy of improving the outcome for Colorado’s K-12 graduates & a Business Guide for Colorado’s next Governor. What Does Amendment 66 Mean for Colorado Taxpayers, Schools, and Jobs? Oct 18, 2013 | Education, Taxes CU Leeds School of Business studies show that without substantial improvement in student performance, Amendment 66 is a drag on the Colorado economy.