CSDS hosts selected visitors from universities in the U.S. and abroad, including from Harvard, the Universities of Peking and Wuhan, Universidad Autónoma de Madrid and École polytechnique fédérale de Lausanne. The purpose of these visits is to develop and apply spatial methods, including spatial flow modeling, spatial hedonic models and other spatial economic models. Visitors are active members of our study group, participate in CSDS research projects, and start new research collaborations.