TOPEKA, Kan. (AP) -- Kansas Revenue Secretary Nick Jordan says he doesn't put much stock in a recent study from a non-partisan research group suggesting the state's tax system is unfair to the poor.

Jordan said Thursday the Washington-based Institute on Taxation and Economic Policy praises states that rely heavily on personal income taxes for revenues while keeping their sales taxes relatively low.

Jordan and Gov. Sam Brownback argue that eliminating Kansas income taxes will spur economic growth and create jobs.

Also, Jordan noted that under the institute's analysis, no state has the wealthiest 1 percent of residents paying the same percentage of their incomes in state and local taxes as the poorest 20 percent.

The institute said Kansas had the 14th greatest disparity of any state.