  Human trafficking is a widespread and compound social, economic, and human
rights issue occurring in every region of the world. While there have been an
increasing number of anti-human trafficking works from the Operations Research
and Analytics domains in recent years, no systematic review of this literature
currently exists. We fill this gap by providing a systematic literature review
that identifies and classifies the body of Operations Research and Analytics
research related to the anti-human trafficking domain, thereby illustrating the
collective impact of the field to date. We classify 142 studies to identify
current trends in methodologies, theoretical approaches, data sources,
trafficking contexts, target regions, victim-survivor demographics, and focus
within the well-established 4Ps principles. Using these findings, we discuss
the extent to which the current literature aligns with the global demographics
of human trafficking and identify existing research gaps to propose an agenda
for Operations Research and Analytics researchers.
