Krugman says the Euro was basically flawed when a single currency was established without political or fiscal union. Because of this the problem can only be solved he says, by action in Brussels and Berlin. Greeks he points out work longer hours than Germans and are not lazy, the welfare state is larger in Sweden and Germany, and Greeks were able to finance imports through trade, shipping and tourism before Greece joined the eurozone. After joining the euro foreign money poured into Greece causing inflation and making Greece wages rise with labor productivity 25% below the European average, making Greece uncompetitive. A lot of the foreign money was wasted and should not have been loaned to Greece in the first place, except that foreign banks perceived the eurozone membership as an implicit guarantee.