My research has emphasized questions about corporate structure and, in addition to a number of articles on the subject,  I am  the co-author of The Power Structure of American Business (with M. Schwartz; University of Chicago Press, 1985), and co-editor of Corporate Control, Capital Formation and Organizational Networks (with T. Takuyoshi and M. Schwartz, Chou University Press, 1996).   I have also published on the United States health care system, with particular attention to business participation in health care policy development and reform and I am particularly interested in the role of corporate capital in the development of the modern health care system.  I am the co-editor of Lesbians in Academia: Degrees of Freedom (with E. Rothblum, Routledge, 1997) and recently Professor Dan Krymkowski and I have studied occupational race and gender segregation.  Currently, I am working on a book entitled, Screwed: Why Kids Owe So Much in Student Loans.