Not at all clear to me this is the case.
If a firm eyeballs a project that is likely to have a good return, they will pursue it regardless of the corporation tax rate at present. Meaning that whether the corporate tax is high, low, or nonexistent, it's better to make money than not make money.
Given this, if a firm cannot see any good opportunities to pursue, incentivizing mass investment in zero or negative return projects, while coincidentally incentivizing lower government revenue is unlikely be a net good for society. That seems to me to be a encouraging massive destruction of wealth and also encourage enormous mis-allocation of capital.
Reinvestment in a corporation is only naturally incentivized when that strategy appears to give the biggest RoI and not all money uninvested from markets, companies etc. will necessarily be reinvested in another venture.
See: https://fred.stlouisfed.org/series/M2V
Our current policy is to paper over bank liquidity or other problems by printing money. Big institutions and the mega-rich are hoarding massive quantities of cash. The economy as a whole would be better off if billionaires were doing stuff with their money rather than hoarding shares.
"Hoarding" is nonsense.
Most of the corporate cash isn’t in equity funds, it in US Treasury debt. Apple holds >$50B of treasury securities, for example.
The low inflation monetary policy has some benefits, but combined with our ass-backwards tax system also makes for strong disincentive to do anything with excess cash.
The effect is almost identical.
