When the U.S. government made their R&D tax credit permanent in December 2015, it made a long-term commitment to using incentives to entice private firms to invest in research and development, joining many countries around the world. Although most studies find that R&D tax incentives promote R&D, there is little consensus on the extent of this effect. A recent firm-level analysis from the United Kingdom finds some of the strongest evidence to date on the effectiveness of R&D tax credits in incentivizing innovation. At the same time, however, other studies suggest other elements of a national economy such as education and infrastructure may be more important.

Many of the most successful technology, life science and advanced companies in the country received financing in the form of an equity investment during their rapid growth and scaling stages of development.  Whether viewed as valiant, villains or vultures, the presence of individuals and firms willing to provide capital to companies when they have few physical assets or revenues is strongly associated with healthy regional innovation economies. As a result, considerable policy attention has been focused by states on increasing the amount of risk capital flowing to local startups.

In a new working paper, Sabrina T. Howell of New York University and Filippo Mezzanotti of Northwestern University provide a systematic review of state angel tax credits. One of the most notable aspects of their research is a seemingly-comprehensive index of all of the relevant programs authorized by states over the past 30 years. The results indicate that angel tax credits have some impact on investment activity but not on economic outcomes.

A recent paper published by SSRN provides a detailed look at the relationship between financial incentives and state fiscal health. The authors control for many potentially-related factors and still find significant, negative impacts of incentives. While the study helps fuel calls for critical analysis and careful implementation of tax incentives, the results may not be as clear cut as some coverage may suggest.

“The Achilles Heel of Reputable VCs,” a recent paper by Nuri Ersahin et al., finds that the most successful venture capital (VC) funds make fewer and smaller investments in states after investment tax credits go into effect. These VCs also co-invest with fewer firms, are less likely to invest in “serial” entrepreneurs and experience fewer positive exits after the introduction of the tax credit.