http://www.forbes.com/sites/rexsinquefield/2016/07/18/kansas-an-unsung-hero-for-economic-growth/#5e8d41785992
Now in the third year of his bold tax experiment, Kansas Governor Sam Brownback can see the ways in which reducing (and, in many cases, eliminating) the state income tax is yielding incremental, positive effects for Kansans.
Significantly, every year since the tax cuts were implemented, Kansas has surpassed the state record for new business formations. When we consider that startups have decreased nationwide since the Great Recession of 2008, this achievement is particularly remarkable. What’s more, the Kansas unemployment rate stands at 3.7% – the lowest the state has seen since 2001, and well below the national average of 5.5%.
http://www.forbes.com/sites/rexsinquefield/2016/05/10/with-income-tax-eliminated-85-million-flows-into-kansas/#3fdd832f4b77
"...Since the implementation of tax reform (when the income tax levied on small businesses fell to zero), private-sector employment in Kansas is higher than in other states with a personal income tax. According to analysis from the Kansas Policy Institute, in the 14 years preceding Governor Sam Brownback’s tax reform, private sector jobs grew by just 2.3% total (or .02% per year), for that entire time span. That’s just 62.5% of the average growth for states with an income tax, and a paltry 15.4% of the average growth of states that do not levy an income tax. The picture gets brighter after the Brownback tax reform. Over the last three years alone, private sector employment increased by 4.0%....."