What really scares economists about the present crisis? That despite spending more than 11 trillion dollars (including guarantees) by governments and central banks the crisis will spiral into global recession and deflation. One very effective way to trigger global recession is trade protectionism, when countries trying to protect their troubled industries impose import duty or non-tariff barriers on offshore producers. When one country does this then other countries follow with retaliation and trade collapses, more jobs are lost which  leads to recession. We have seen this happening in 1930s.

See chart below (thanks go to David Wheelock from Fed St.Louis), which shows monthly value of imports in 75 countries between 1929 and 1933. Trade implosions happen, you have been warned.

protectionism_1930s.png