There has been a recent renewal of interest in collaboration among supply-chain partners, according to Ann Grackin, chief executive officer of ChainLink Research. Reasons include a greater reliance on outsourcing and the general trend of globalization of trade. Yet another element is the desire to draw on sophisticated technology, including video, teleconferencing and social networks, to link all players throughout the chain. With such factors in mind, says Grackin, "you need working relationships with trading partners to be successful."