How economic democracy would have prevented the Cadbury sell-off

A letter in today's Guardian points out that employee ownership would have prevented the Cadbury sell-off.

Had the Cadbury family followed the examples of the families behind John Lewis, Ove Arup, Tullis Russell, Scott Bader, the Baxi Group and others in selling their shareholdings into employee ownership, the tragedy of the acquisition of Cadbury by Kraft would have been avoided. If enlightened owners want to avoid the short-term interests of institutional investors always trumping the long-term interests of employees and customers, they know what they have to do.
Andrew Gunn
Former chairman, Employee Ownership Association