Project Summary This study will advance the current understanding of how management procedures that involve predictability, opportunity and control can be implemented proactively to accomplish meaningful reductions in stress, social aggression and trauma that generate a net cost savings for the CNPRC (and other primate facilities). Our investigation of social network structure and dynamics using novel network measures and techniques will allow us to gain a deeper understanding of whether/how these management strategies accomplish such reductions in stress and trauma, such as offering methodologies for examining the complexity of social stability, and our utilization of a thorough economic approach to calculate all costs associated with implementation of management procedures will allow us to conclude with certainty which management strategies reduce hospitalizations due to stress and trauma with minimal increases in staff time to yield significant cost savings for the CNPRC (and other primate facilities), and ultimately improve animal health and well-being in a cost- effective fashion.