This model is a simulation of the ceremonial exchange network in Papua New Guinea called the Kula Ring. In the Kula Ring, there are two types of gifts that travel in opposite directions: armshells counterclockwise and necklaces clockwise. This model is a replication of some aspects of a model created by Rolf Ziegler. The purpose of Ziegler’s model was to account for the emergence and stability of this exchange network.
you'd like to know more information about what data we collect and why, please see