In 2018, when the Trump administration imposed a 25 percent tariff on imports from China, executives at Walmart sent a letter to U.S. Trade Ambassador Robert Lighthizer in which they stated, “For lower-income families, a 25% tax on these items would be a serious burden on household finances.” Why would the Walmart executives consider a 25 percent tariff on imports to be the equivalent of a 25 percent tax on their customers? Don’t foreign firms exporting a good to the United States and not U.S. consumers buying the good have to pay the tariff? Briefly explain.