Columbia subject headings:
Economics--Research--United States--Periodicals.
Yale University. Cowles Foundation for Research in Economics--Periodicals.
Harvard subject headings:
Economics--Research--United States--Periodicals.
Yale University. Cowles Foundation for Research in Economics--Periodicals.
Princeton subject headings:
Economics--Research--United States--Periodicals.
Periodicals.
Yale University. Cowles Foundation for Research in Economics--Periodicals.