Columbia subject headings:
Fuel--Prices--United States--Forecasting--Econometric models--Periodicals.
Product life cycle--Costs--Forecasting--Econometric models--Periodicals.
Harvard subject headings:
Fuel--Prices--United States--Forecasting--Econometric models--Periodicals.
Product life cycle--Costs--Forecasting--Econometric models--Periodicals.
Princeton subject headings: