I know the new populist wing of the GOP likes the idea of threatening companies with an import tax, but Donald Trump’s threat to do it is one that would have an impact on the US economy and not in a right way. The very people Trump directs this at, are the ones who will be hurt most by its implementation.

Here is what President-elect Trump said:

The U.S. is going to substantialy reduce taxes and regulations on businesses, but any business that leaves our country for another country,

— Donald J. Trump (@realDonaldTrump) December 4, 2016

fires its employees, builds a new factory or plant in the other country, and then thinks it will sell its product back into the U.S. ……

— Donald J. Trump (@realDonaldTrump) December 4, 2016

without retribution or consequence, is WRONG! There will be a tax on our soon to be strong border of 35% for these companies ……

— Donald J. Trump (@realDonaldTrump) December 4, 2016

wanting to sell their product, cars, A.C. units etc., back across the border. This tax will make leaving financially difficult, but…..

— Donald J. Trump (@realDonaldTrump) December 4, 2016

these companies are able to move between all 50 states, with no tax or tariff being charged. Please be forewarned prior to making a very …

— Donald J. Trump (@realDonaldTrump) December 4, 2016

expensive mistake! THE UNITED STATES IS OPEN FOR BUSINESS

— Donald J. Trump (@realDonaldTrump) December 4, 2016

Forget for a moment that Trump has goods bearing his name made in other countries such as China and Mexico, and look at instead, the impact his tariff would have on consumers. There is a lot of information out there but one important aspect to keep in mind is if the United States can impose tariffs on companies opening plants and factories overseas or across the border, those countries can do the same. In fact, they already did:

By 2009, the United States was importing tires from China at a rate of about 50 million per year. The United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial, and Service Workers International Union complained to the Obama administration that there was a “large, rapid, and continuing” increase in the number of Chinese-made tires entering American markets. In September of that year, Obama approved relief for domestic producers by increasing tariffs on most new tire imports for three years.

Economists Gary Clyde Hufbauer and Sean Lowry note that the number of Americans employed in tire manufacturing increased from 50,800 in September 2009 to 52,000 in September 2011. If all 1,200 jobs were attributed to the tariff — an exceedingly generous assumption — they calculate that Obama’s move could be credited with saving or creating $48 million of additional worker income and purchasing power.

But the tariff also forced consumers to spend $1.1 billion more on tires than they otherwise would have — or roughly $900,000 per U.S. tire industry job created. And retaliatory tariffs imposed by the Chinese further hurt our economy. In early 2010, China’s Ministry of Commerce imposed tariffs ranging from 50.3 to 105.4 percent on American poultry imports, which “reduced exports by $1 billion as U.S. poultry firms experienced a 90 percent collapse in their exports of chicken parts to China,” according to Hufbauer and Lowrr

In the end, such tariffs are always going to have adverse effects elsewhere. Ben Sasse tweeted the following:

Pres-Elect Trump means well. But won't his 35% tariff idea raise prices on American families? How would it not be a new 35% tax on families?

— Ben Sasse (@BenSasse) December 4, 2016

His question is rhetorical, but he’s making a valid point. A tariff works like a tax but comes in the form of higher prices. The revenue generated gets split up between the government, the worker, and the companies that get protected from competition. So if you’re in Arizona and buy an air conditioner, some of that money will be handed over to workers in Indiana for example (and their corporate overlords). That air conditioner is going to cost a lot more than it did before just to preserve a job here or there.