Ethan Ilzetzki is an assistant professor of economics at the London School of Economics and a research affiliate at the Centre for Economic Policy Research. He joins the show to discuss exchange rate regimes, anchor currencies, and the new Triffin dilemma. Ethan points out how the U.S. dollar is connected to a staggering 70 percent of global GDP. David and Ethan discuss what the dollar’s dominant role in the global economy means for U.S. monetary policy, both at home and abroad.