A strengthening dollar reignites a recurring debate about how to hit back against countries that deliberately weaken the value of their currencies. Joseph Gagnon (PIIE) and Maury Obstfeld (PIIE, Berkeley) join to discuss two recent and controversial policies proposed to attack that problem. The first is retaliatory tariffs under US countervailing duty law. The second is to give the US Treasury and Federal Reserve new access to hundreds of billions of dollars to use as countervailing currency intervention.

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