During the 2008 financial crisis, the U.S. current account deficit shrunk versus prior to the crisis. By contrast, during the Covid-19 pandemic, the U.S. current account deficit widened versus prior to the crisis. Using the AA/DD framework or Metzler diagram, discuss three plausible hypotheses why the U.S. current deficit shrunk in 2008 or widened in 2020 (you can discuss either or both episodes)