We use a two-period model because
A) the business cycle has two phases: contraction and recovery.
B) it is the simplest dynamic model.
C) we want to make a distinction between young and old households.
D) this is the horizon of the politicians that formulate policy.
Question 2
If real GDP helps to predict the path of a particular macroeconomic variable, it is said to be a
A) conventional variable.
B) coincident variable.
C) leading variable.
D) lagging variable.