There has been a lot of discussion of models of corporate tax cuts, which the GOP has ignored. There is also, however, empirical evidence in the form of the 1986 reform, which was a model of clarity and good policy compared with the current monstrosity 1/
That reform reduced the marginal tax rate on corporations from 46 to 34 percent, while closing enough loopholes to be revenue-neutral. This was what reformers claimed they would do this year hahaha. But how did it work? 2/
Did it lead to an acceleration in the growth of potential GDP, the economy's productive capacity? Not so anyone could tell 3/ 
In fact, it didn't even lead to a rise in business investment; there was a boom a decade later, but that was about technology, not tax policy 4/
So it's not just serious economic analysis that leads one to dismiss happy talk about corporate tax cuts; history tells the same story. This will do nothing visible for growth 5/
