A clearly happy birthdayClearing houses have seldom had as much attention focused on them as they are having at the moment. The previously cosy relationships that existed between most exchanges and clearing houses has come under close scrutiny with long-established relationships coming to an end. So it is timely that Kansas City Board of Trade should be celebrating the 90th anniversary of its wholly-owned clearing house, the Kansas City Board of Trade Clearing House. Established in 1913 as the Grain Clearing Company, the clearing house...