U.S. tariffs boost trade tensions and protectionist theory. Jeffry Frieden, June 14, 2018, Audio, “In the potential tariff war between China and the United States, each state is choosing to protect different sectors. Which is right? And is there a way for a country to engage in “good” protectionism for its own interests? First off, economists in general agree that tariffs should be avoided because they bring costly trade-offs. If a country taxes imported sneakers, for instance, it helps domestic shoemakers but deprives shoe buyers of the best, low-price kicks.Link