The sociocultural subject files contain materials collected by Dr. Spilde about sociocultural issues related to Native Americans, Native American gaming, and gaming in the United States. Materials date from 1980 to 2007, with the bulk of materials dating from 1994 to 2005. Materials include socioeconomic impact studies and reports; annual reports; periodicals; memos; correspondence; notes; video recordings of televised programs; conference materials; promotional materials; booklets, pamphlets, and packets; journal articles; law review articles and legal briefs; and newspaper articles. The materials concern a variety of topics such as compulsive gambling, Native American health, environmental policy, the social cost of casino gaming, criminal activities, card counting, Native American culture, and the social impacts of gaming in the United States.

The socioeconomic subject files (1993-2003) contain materials collected by Dr. Spilde about bankruptcy and the socioeconomic impact of Native American gaming enterprises in the United. Materials include impact studies, reports, memos, press releases, informational materials, journal articles, legal briefs, and newspaper articles.