Penn Wharton: Republican Tax Plan Would Do Almost Nothing to Boost GDP

The Penn Wharton Business Model has analyzed the Republican Tax plan and reports back that it will have the following effect on GDP:

What’s that? The chart is too small and you can’t see the difference? No worries: your eyes are fine. The problem is that there virtually is no difference. PWBM figures that by 2027 GDP would be .58 percent higher than it would be under current law. That’s a difference of .05 percent per year. And that’s with dynamic pixie dust included.

In other words, GDP growth over the past couple of decades has averaged about 2.3 percent per year. The Republican tax plan would increase that to…2.35 percent. This is not exactly the supercharged 3 percent economy Donald Trump promised us.

And it gets worse after 2027. Thanks to the $5 trillion in extra debt the tax cut generates, the economy would lose even this tiny amount of extra growth and maybe even grow slower than it would under current law. Between 2017 and 2040, the total net effect of the Republican plan is basically zero.

But a bunch of rich people would be a lot richer. Mission Accomplished!


We recently wrapped up the crowdfunding campaign for our ambitious Mother Jones Corruption Project, and it was a smashing success. About 10,364 readers pitched in with donations averaging $45, and together they contributed about $467,374 toward our $500,000 goal.

That's amazing. We still have donations from letters we sent in the mail coming back to us, so we're on pace to hit—if not exceed—that goal. Thank you so much. We'll keep you posted here as the project ramps up, and you can join the hundreds of readers who have alerted us to corruption to dig into.

We Recommend


Sign up for our newsletters

Subscribe and we'll send Mother Jones straight to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.


Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.


Share your feedback: We’re planning to launch a new version of the comments section. Help us test it.