1. Block, Fred and Matthew R. Keller, eds. (2016). State of Innovation: The U.S. Government's Role in Technology Development. New York, NY: Routedge.
2. Briganti, Edoardo and Victor Sellemi (2023). "Why Does GDP Move Before Government Spending? It's all in the Measurement".
3. Brunet, Gillian (2022). "When Does Government Spending Matter? Evidence from a New Measure of Spending".
4. Science-The Endless Frontier;Bush;Tech rep,1945
5. Campbell, Sheila and Chad Shirley (2018). Estimating the Long-Term Effects of Federal R&D Spending: CBO's Current Approach and Research Needs. Tech. rep. Congressional Budget Office. url: https://www.cbo.gov/publication/54089.