St. Louis Fed President James Bullard says Donald Trump's policies may improve U.S. productivity. Prior to that, UBS' Geoffrey Yu says the Turkish Lira is among the most vulnerable to changes in exchange rates. Then, Michael Feroli, JPMorgan's chief U.S. economist, says Trump's fiscal policy has several layers of uncertainty. Finally, Joachim Fels, PIMCO's global economic adviser, says populism means the EU may break up in the next crisis.