Trumponomics Vs. Economic Forecasts

 | Feb 24, 2017 08:01AM ET

Economic forecasting that’s largely informed by politics is a treacherous affair, but it may be unavoidable in the current climate. If you’re a Donald Trump supporter there’s a good chance that you’re anticipating stronger US growth. But if you voted for someone else last November, it wouldn’t be surprising to learn that you’re skeptical that a dramatic acceleration in the economic trend is near.

This much is clear: if you’re taking clues from the White House, the future looks bright. The Wall Street Journal last week reported that the Trump administration has directed the Council of Economic Advisers to project GDP growth will be a sustainable 3.0 to 3.5% going forward. What’s the foundation for this rosy outlook? The answer starts with Trump’s plans to cut taxes, pare regulations, renegotiate trade deals, and roll out a huge infrastructure-spending program.

If the administration’s upbeat estimates are correct, the future will certainly compare favorably with recent history. GDP increased by a weak 1.6% last year, according to the Bureau of Economic Analysis, down from the mid-2% range in each of the two previous calendar years. A 3.0%-to-3.5% advance, by comparison, would be the economic equivalent of manna from heaven.

But now comes the tricky business of deciding if the optimism for such a hefty improvement in growth is warranted. The trouble starts with the usual challenges, namely, predicting economic activity beyond a few months is more guesswork than science. Even if you’re fully on board with the administration’s estimates, implementing the policies that will deliver the goods will take time and be subject to the standard tweaks in Congress.

Putting those caveats aside, let’s throw caution to the wind and consider what forecasters are expecting for next year and 2019, based on this month’s survey data via The Wall Street Journal. The good news on this front is that dismal scientists see faster growth in 2018, albeit well short of the 3.0%-to-3.5% pace that White House is shooting for. The average estimate for 2018 sees an increase of 2.5% in real GDP, a bit faster than the expected 2.4% rise for this year and moderately faster than 2016’s weak 1.9% rise. But the trend is set to weaken in 2019 to 2.1%.