The institutional literature suggests that long-term tax incentives are crucial for entrepreneurs, but studies on this topic are hampered by theoretical and empirical problems related to how to define and measure entrepreneurial income. We resolve these problems by drawing on a theoretical...

Using a narrative identification of US tax changes over the post-WWII period, we show that corporate income tax cuts foster R&D spending and innovation, leading to a persistent increase in aggregate productivity and output. In contrast, changes in the average personal income tax rate have mostly...