Columbia subject headings:
United States--Economic conditions--1981-2001--Data processing.
United States--Economic conditions--1981-2001--Econometric models.
Harvard subject headings:
United States--Economic conditions--1981-2001--Data processing.
United States--Economic conditions--1981-2001--Econometric models.
United States--Economic conditions--1981-2001--Mathematical models.
Princeton subject headings:
United States--Economic conditions--1981---Data processing.
United States--Economic conditions--1981---Econometric models.