Many liken it to a relationship or marriage: courtship is followed by cohabitation, and the potential exists for a lifetime of harmony provided there is candour and mutual financial interest. More dramatic still are the metaphors employed by bankers, describing it as a company’s heart, lifeblood or nervous system.For banks, the attraction of transaction banking is straightforward. ’When a bank acts as a primary provider of transaction services, the bank’s network becomes an extension of the client’s own infrastructure,’ says...