The most recent proposal to invoke this topic:
The Tax Foundation released a report last week arguing the Rubio-Lee plan would generate so much business investment that, within a decade, federal tax receipts would be higher than if taxes hadn’t been cut at all. According to William McBride, the chief economist at the right-of-center think tank, the senators’ plan would add 15 percent to gross domestic product and 13 percent to wages.
If that sounds aggressive to you, you’re not alone: I discussed the Tax Foundation report with 10 public finance economists ranging across the ideological spectrum, all of whom said its estimates of the economic effects of tax cuts were too aggressive. “This would not pass muster as an undergraduate’s model at a top university,” said Laurence Kotlikoff, a Boston University professor whom the Tax Foundation specifically encouraged me to call.
And the problem (again, "dynamic scoring", or, as currently used in Congress, "tell us how you want the results to come out; we'll make it happen"):
This assumption led various economists to invoke the names of small islands.
“That’s true for the Netherlands Antilles, it’s not true for us,” said Doug Holtz-Eakin, the former head of the Congressional Budget Office who was John McCain’s top economic adviser during his 2008 campaign.
“It’s a model that might be appropriate for Bermuda,” Mr. Kotlikoff said.
In a very small, very open economy, the Tax Foundation might be right: Cuts in investment taxes would drive a flood of foreign capital, producing a huge percentage increase in investment. But the United States is simply too big for that to work. The U.S. economy also is not perfectly open; for example, we have some restrictions on trade. Therefore, estimates of the amount of investment created by investment tax cuts should be more modest. Economists also criticized the Tax Foundation model for assuming all that new investment would fall into place very rapidly, and for failing to address economic effects from spending cuts or increased borrowing that the tax cuts would require in their first years.