Economic and fiscal policy minister says worst economic crisis since end of World War II . Tokyo 's gross domestic product fell 12.7 percent in Monday . A slump in exports has led to tens of thousands of layoffs across Japan .
Economic and fiscal policy minister says worst economic crisis since end of WWII . Japan 's gross domestic product fell 12.7 percent in the fourth quarter in 2008 . A slump in exports has led to tens of thousands of layoffs across Japan .