The Business of Celtic and Rangers

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From friendly rivals to bitter adversaries, this series will discover the history of two of football's biggest teams and challenge some of the myths associated with both clubs. Along the way a fascinating social history will be revealed,and how Rangers and Celtic have come to dominate - and divide - a city.

The Business of Celtic and Rangers
Lesley Campbell looks at the two teams that make up the Old Firm, and assess them not as sporting clubs, but as business ventures, and what the future might hold for them in an uncertain global economy.