Chapter 14: Money & The Economy Flashcards
Equation of Exchange
An identity stating that the money supply (M) times velocity must be equal to the price level (P) times Real GDP (Q) =
MV = PQ
Velocity
The average number of times a dollar is spent to buy final goods and services in a year.
Simple Quantity Theory of Money
The theory assuming that velocity and Real GDP (Q) are constant and predicting that changes in the money supply (M) lead to strictly proportional changes in the price level (P).
Monetarists
Economists not content to rely on the simple quantity theory of money. They do not hold that velocity or output is constant.
4 Monetarist Positions
- Velocity changes in a predictable way
- Aggregate demand depends on the money supply and on velocity
- SRAS-curve is upward-sloping
- The Economy is self-regulating (prices & wages are flexible)
One-shot inflation
A one-time increase in the price level; an increase in the price level that does not continue.
Continued Inflation
A continued increase in the price level.
2 Assumptions regarding the simple quantity theory of money
- Changes in velocity are so small that for all practical purposes velocity can be assumed to be constant
- Real GDP - Q - is fixed in the short run
4 Nonactivist monetary proposals:
- Constant-money-growth-rate rule
- Predetermined-money-growth-rate rule
- The Taylor rule
- Inflation Targeting
Constant-money-growth rule
The annual money supply growth rate will be constant at the average annual growth rate of Real GDP.
2 Assumptions made by the constant-money-growth-rate rule
- Velocity is constant
- The money supply is defined correctly
Critics POV: Constant velocity assumptions in the constant-money-growth rule
Argue velocity has not been constant in some periods.
Critics POV: Assumption that the money supply is defined correctly in the constant-money-growth rule
They argue that it is not yet clear which definition of money supply is the proper one and therefore which money supply growth rate should be fixed: M1, M2, or some broader monetary measure.
Predetermined-Money-Growth-Rate Rule
The annual growth rate in the money supply will be equal to the average annual growth rate in Real GDP minus the growth rate in velocity.
%∆M = %∆Q - %∆V
The Fed and the Taylor Rule
The federal funds rate target “should be one-and-a-half times the inflation rate plus one-half times the GDP gap plus one”.
Federal funds rate target = 1.5 (inflation rate) + 0.5 (GDP gap) + 1