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what is the long run trend rate of growth
the average sustainable rate of economic growth over a period of time
what is actual growth
is the actual change (i.e the change in real GDP) over time
what is an output gap
the difference between the actual level of GDP and the estimated long-term value for GDP
what is a positive output gap
GDP is higher than long term value for GDP (LRAS curve)
what is a negative output gap
GDP is lower than long term value for GDP (LRAS curve)
how can output gaps be illustrated
using AS and AD diagrams, with LRAS showing full capacity output
explain output gap using curves
equilibrium to the right of the LRAS shows economy working over capacity in short term
equilibrium to the left shows economy working under capacity
what do classical economists believe about output gaps
positive output gaps:
filled by long run economic growth => moving the LRAS curve
recession decrease AD or rise in production costs would decrease SRAS
negative output gaps:
would be brought back to equilibrium by rising AD or a fall in SRAS due to lower production costs