世界展望會
Arnold was Chief Executive of the humanitarian organisation World Vision Australia from 1997 until 2003. In 2003, he was appointed Regional Vice President of World Vision International for the Asia Pacific Region, based in Bangkok, Thailand. In October 2006, he was appointed Senior Director (Board Development &amp; Peer Review) for World Vision International, heading a team assisting World Vision boards and advisory councils in the development of their governance capacity, and also for administering peer review programs in World Vision partnerships.