The United States launched a Section 301 investigation into China's technology transfer and intellectual property policies and practices last week, raising more concerns about the trade policy of the Donald Trump administration, which is increasingly unilateral, protectionist and rules-breaking.

While the action may reflect the views of some trade hawks in the Trump administration, many US economists have opposed reviving the outdated Section 301 of the US Trade Act of 1974.

The reason is clear. With its Section 301 investigation the US is trying to be a player and the referee at the same time. The dispute settlement mechanism of the World Trade Organization, set up in 1995, is the right place to address such issues.