Understanding Business Cycles Flashcards
Real GDP and Unemployment are key variables used to determine the current phase of the business cycle
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Four Stages of a Business Cycle
- Expansion
- Peak
- Contraction/Recession
- Trough
Inventories are used as an important business cycle indicator.
- In Inventories accumulate when expansion is reaching peak
* Inventories deplete when contraction is reaching the trough
As Expansion is approaching its peak
- Sales growth slows
* * Inventories accumulate
As Contraction is reaching the trough
- Sales growth begins to increase
* * Inventories deplete
Housing Sector Influence on Business Cycle
- Mortgage Rates – when interest rates are low, they tend to increase home buying and construction
- Housing costs relative to income – when incomes are cyclically high relative to home costs, home buying and construction tend to increase.
- Speculative Activity – rising home prices can be bought on expectation of further gains.
- Demographic Factors – proportion of population in the 25 to 40 year old demographic is positively related to activity in the housing sector.
External Trade Sector Activity
- domestic GDP growth
- GDP growth in trading partners
- currency exchange rates
Characteristics of a Trough
- GDP growth rate goes from - to +
- High unemployment, overtime increases
- Spending on durables and housing increase
- Moderate or decreasing inflation
Characteristics of Expansion
- GDP ^, Unemployment decreases
- Investment ^ (by firms and consumers)
- Inflation ^
- Imports ^, (more $$ for demand to ^)
Characteristics of a Peak
- GDP decreases, Unemployment decreases, but slows
- Spending and business investment slows
- Inflation ^
Characteristics of a Contraction/Recession
- GDP decreases, Unemployment ^
- Spending and Investment decrease
- Inflation decrease, with a lag
- Imports decrease as income growth slows
Neoclassical Theory
- Shifts in Aggregate Demand and Aggregate Supply are driven by changes in technology
- Business Cycles are temporary deviations from LR equilibrium
Keynesian Theory
- Fluctuations are primarily due to swings in levels of optimism of those who run businesses
- Increase in Aggregate Demand directly through monetary or fiscal policy
New Keynesian Theory
- Keynesian School, plus prices of production inputs other than labor are “downward sticky” presenting additional barriers to reaching full employment.
Monetarist Theory
Aggregate Demand that causes business cycles are caused by rate of growth of Money Supply likely from inappropriate decisions by monetary authorities.
Austrian School Theory
Business cycles are caused by government intervention in the economy