Business cycles and aggregate spending Flashcards
Business cycles are defined as
Periodic fluctuations in the rate of economic activity, as measured by levels of employment, prices and production
Peak
The top of the cycle - productive capacity fully utilised, shortages may start to develop
Recession
A downturn in activity. A recession is defined as a fall in real GDP for two successive quarters. Typically incomes and employment levels fall
Trough
Characterised by high unemployment and low demand in relation to the capacity to produce. Business confidence is low
Recovery
Characterised by raining incomes, employment and consumption. Business expectations become more optimistic and new investment projects are begun
Autonomous (Exogenous) spending
Spending which is independent of current income
Induced spending
Spending which rises with income
Marginal propensity to consume =
∆C/∆Y where 0 < ∆C/∆Y < 1
Average propensity to consume (APC) =
C/Y
The linear consumption function
C = a + bY
The savings function
S = -a + (1-b)Y
Average propensity to consume
C/Y = a/Y + b
Average propensity to spend
S/Y = -a/ Y + (1-b)