TOKYO -- The Bank of Japan hopes its negative interest rate will help to boost prices. Haruhiko Kuroda, the central bank's governor, argues the policy will spur consumption and capital spending. But do negative interest rates work? And what side effects come with them?
We can look to Europe for some answers. From 2012 to 2015, the central banks of Denmark, Switzerland and Sweden all introduced negative rates, as did the European Central Bank.