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Increasingly, firms have to be agile in order to respond to continuously changing internal and external conditions. To this end, transaction-based supplier exchanges characterized by market transactions are increasingly being replaced by supplier alliances. Supplier alliances secure the provision of critical resources, and buyers and suppliers use there partnerships to enhance their competitive positions. Alliances allow buyers and suppliers to realize long-term objectives such as im-proved market offerings, reduced supply channel costs and enhanced opportunities to develop and launch innovations. Unlike traditional bargain-driven supplier exchanges, however, supplier alliances also impose switching costs and reduce flexibility for both suppliers and buyers, and the increased entanglement mean that opportunistic behaviour can have much worse repercussions. In addition to generic alliance guidelines, managers can steer supplier alliances to success by paying particular attention to the interdependence relationship, the scope and intensity of the supplier alliances