Forecasting the Future Path of Real GDP by Exploiting Past

Multiple Choice

Forecasting the future path of real GDP by exploiting past statistical relationships

A) can be accomplished by the construction and use of an index of coincident variables.
B) can be accomplished by the construction and use of an index of lagging variables.
C) can be accomplished by the construction and use of an index of leading variables.
D) can only be accomplished if there is a perfectly positive correlation.
E) is never very reliable.