Columbia subject headings:
Economic forecasting--United States.
Social prediction--United States.
United States--Economic conditions--1981-2001.
United States--Politics and government--1981-1989.
United States--Social conditions--1980-2020.
Harvard subject headings:
Economic forecasting--United States
Social prediction--United States
United States--Economic conditions--1981-2001
United States--Politics and government--1981-1989
United States--Politics and government--1989-
United States--Social conditions--1980-2020
Princeton subject headings:
Economic forecasting--United States.
Social prediction--United States.
United States--Economic conditions--1981-2001.
United States--Politics and government--1981-.
United States--Social conditions--1980-2020.