I'd love for someone who understands things to compare the Yellen/Summers comments to that of Clayton Christensen's "Capitalist's Dilemma"[1] from eight years ago. For example, it seems to me that an additional capital gains bracket that incentivized very long-term investment would encourage more to invest.
[1] https://www.nytimes.com/2012/11/04/business/a-capitalists-di...