Republican Economists Admit “Long Run” Could be as Short as a Decade

If achieved over a decade, the associated increase in the annual rate of GDP growth would be about 0.4% per year…”

The “If” at the start of the second sentence in the second quote is an assertion that the long run could well be as short as a decade. That is a claim about the lower bound of the speed of adjustment to a long-run result if I have ever seen one.