Presented by  Dr. Meredith Dank of New York University and IOM Costa Rica’s Francesca Tabellini and Alina Cedeño. The project in Costa Rica estimated the prevalence of  forced labor in the fishing industry in Costa Rica. The team employed (1) multi-stage Probability Proportional to Size (PPS) or household enrollment sampling, and (2) multi-wave snowball or Link Tracing Sampling (LTS) to examine the prevalence of forced labor in Costa Rica’s fishing sector. A Network Scale-Up Method (NSUM) component was added to the PPS survey. The project included collaborations with the University of Massachusetts Lowell and a local team from the International Organization for Migration.