As Kansans prepare to debate whether to reduce our state’s income taxes, there will be those, such as Rhonda Holman of the Wichita Eagle, who will urge caution before proceeding with reducing taxes. Others will claim that government taxation and spending is what makes the state’s economy grow. Two research papers illustrate the need to reduce taxes, finding that high taxes are associated with reduced income and low economic growth. Research such as this rebuts the presumption of government spending advocates that reducing taxes will kill jobs in Kansas.
One paper is The Robust Relationship between Taxes and U.S. State Income Growth by W. Robert Reed, published in the National Tax Journal in March 2008. The abstract to this paper states:
I estimate the relationship between taxes and income growth using data from 1970 – 1999 and the forty-eight continental U.S. states. I find that taxes used to fund general expenditures are associated with significant, negative effects on income growth. This finding is generally robust across alternative variable specifications, alternative estimation procedures, alternative ways of dividing the data into “five-year” periods, and across different time periods and Bureau of Economic Analysis (BEA) regions, though state-specific estimates vary widely. I also provide an explanation for why previous research has had difficulty identifying this “robust” relationship. (emphasis added)
In his introduction, Reed writes that previous studies had found: “To the extent a consensus exists, it is that taxes used to fund transfer payments have small, negative effects on economic activity.” His paper found a stronger relationship.
Reed issues a caution on the use of his conclusions: “It needs to be emphasized that my claim for robustness should be understood as applying only within the context of U.S. state income growth. It should not be interpreted as being more widely applicable to other contexts, such as employment growth, manufacturing activity, plant locations, etc., or to the relationship between taxes and income growth outside the U.S.”
This illustrates one of the ways we focus on the wrong measure of growth. Politicians focus on jobs. But to business, jobs are a cost. One of the better goals to seek, as Art Hall specifies in his paper Embracing Dynamism: The Next Phase in Kansas Economic Development Policy, is income growth, along with population density and population migration, productivity growth, capital investment, gross business starts and expansions, and customer service and throughput measures of state economic development agencies. Hall writes: “If Kansas performs well in the measures provided, it will also perform well in terms of job count.”
Another example of research finding a negative impact of taxation is State Taxes and Economic Growth by Barry W. Poulson and Jules Gordon Kaplan, published in the Winter 2008 Cato Journal. In the introduction to the paper, the authors write: “The analysis reveals a significant negative impact of higher marginal tax rates on economic growth. The analysis underscores the importance of controlling for regressivity, convergence, and regional influences in isolating the effect of taxes on economic growth in the states.” (emphasis added)
In its conclusion, the paper states:
The analysis reveals that higher marginal tax rates had a negative impact on economic growth in the states. The analysis also shows that greater regressivity had a positive impact on economic growth. States that held the rate of growth in revenue below the rate of growth in income achieved higher rates of economic growth.
The analysis underscores the negative impact of income taxes on economic growth in the states. Most states introduced an income tax and came to rely on the income tax as the primary source of revenue. Jurisdictions that imposed an income tax to generate a given level of revenue experienced lower rates of economic growth relative to jurisdictions that relied on alternative taxes to generate the same revenue. (emphasis added)