David Dodge appeared on CBC TV's On the Money to say why the central banks in advanced economies need to work together and raise interest rates. Rates have been at emergency lows since the financial crisis but David questions the need to continue this approach. Keeping rates at emergency levels has reduced the power of central banks to influence investment and consumption through monetary policy. There is also accumulating anecdotal evidence and increasing concern that today's ultra-low rates may actually be suppressing economic growth.  Co-ordinated Hikes