The OECD has published two working papers on how taxation affects investment: How does corporate taxation affect business investment? Tax and Investment by Multinational Enterprises The working papers are summarized as follows: --- How does corporate taxation affect business investment? Evidence from aggregate and firm-level data Business investment in OECD countries has remained weak, in particular since the 2008 global financial crisis. At the same time, the cost of capital has significantly and steadily decreased over the last thirty years, reflecting a fall in both interest rates and corporate tax rates. This raises the question of whether business investment still...