Elisa Gamberoni and Richard Newfarmer, who work at the World Bank, are worried about protectionism:

G20 leaders signed a pledge on 15 November 2008, to avoid protectionist measures. However, since then, several countries, including 17 of the G20, have implemented 47 measures whose effect is to restrict trade at the expense of other countries.

We want to hear what you think about this article. Submit a letter to the editor or write to letters@theatlantic.com.