New Republican Math on Tax Cuts Doesn’t Equal Faster Growth

Congressional Republicans who rewrote the rules on measuring the economic effects of legislation may be disappointed at some of the results.

They want to prove a point they’ve been making for decades -- that tax cuts spur economic growth and send enough new money into U.S. government coffers to partly pay for themselves. The new rules implement what’s known as dynamic scoring, breaking with a previous system that doesn’t calculate the impact of policy changes.