Dr Yiu is an Associate Professor in the Department of Property at The University of Auckland. He is a member of the Faculty Research Committee at the University and a member of the Board of Trustees of Property Research Trust, UK. His research focus is on property economics and housing issues. He developed the Spatial Portfolio Theory and the Retail Tenant Mix Model. By profession, Dr Yiu is a Chartered Surveyor (a Fellow of the Royal Institution of Chartered Surveyors and a member of the Hong Kong Institute of Surveyors) and was the elected candidate representing the Architectural, Surveying, Planning, and Landscape Functional Constituency in the Hong Kong Legislative Council in 2016. Before joining the Legislative Council, he was one of the Associate Directors of the Institute of Future Cities and an Associate Professor in the Department of Geography and Resource Management at the Chinese University of Hong Kong.