Stanish's theoretical work examines on the roles of trade, war, and labor organization in the evolution of human cooperation and complex societies. In the
Lake Titicaca basin, Stanish and colleagues identified a complex trade network linking the basin to the eastern Andean lowlands and
Amazonia. Their research in Titicaca also provided evidence for the role of
warfare in the process of
state formation. In the
Chincha Valley of
Peru, Stanish and
Henry Tantaleán identified
geoglyphs associated with
Paracas ritual centers; this finding was named one of 2019's greatest archaeological discoveries by the Peruvian Ministry of Culture. He has also conducted scientific investigations on the
Band of Holes, a mysterious site on the Peruvian south coast which has often been the subject of
pseudoscientific speculation. == Philanthropy ==