Cadbury, which has been sold to US firm Kraft, is one of several great British firms founded by Quakers. But how did they gain such a stranglehold on the chocolate industry and why were they so successful in business?
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But when it comes to confectionery, there has been a virtual monopoly for more than a century, led by Cadbury of Birmingham, Fry’s of Bristol and Rowntree’s and Terrys of York.