The bank has announced that it will increase its purchase of government bonds by 50 trillion yen ($520 billion), a figure that is equivalent to approximately ten percent of Japan’s annual gross domestic product.
Japan's economy has been hurt by a variety of factors, not least decades of deflation or falling prices. Falling prices discourage people from spending and companies from investing, and that has trapped Japan in a cycle of what analysts have described as sluggish growth and recession.