President Trump should trust Wharton School instincts on trade

Last weekend, President Trump offered perhaps one of his best ideas to date, which is a tariff- and subsidy-free G7.
Since long before he was even a presidential candidate, Trump has been a consistent critic of international trade agreements. As president, he has taken to using tariffs and threats of tariffs in protest of what he considers unfair trade practices that disadvantage the United States.
It was somewhat surprising then for Trump to suggest the elimination of tariffs and subsidies betw