Industry: Insurance Data: IT Contracts sold to Insurance firms 1996-2005 (Computer Wire Data Base)

Treatment: Dark circles are IT providers. White circles are Insurance clients. Size of node represents degree centrality. Some weaker links (smaller contracts may have been filtered out). Linked providers identify a sub-contract arrangement. Thickness of the link indicates the relative size of the contract.

Commentary: IBM is shown to be the leader in terms of the number and size of contracts, followed by CSC and the CGI group. Manulife, AXA Sun Life and Sun Life are multi-sourcing.

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