The diagram below shows the initial short run aggregate supply curve (SRAS$_1$) and long run aggregate supply curve (LRAS$_1$) for an economy. SRAS$_2$ and LRA$S_$2}$ are the new positions of the two aggregate supply curves.
The most likely combination of causes of the shifts in the short run and long run aggregate supply curves is

1 )
a fall in indirect tax and a fall in skill levels.
a fall in money wages and a rise in immigration.
3 )
a fall in productivity and a rise in emigration.
4 )
an increase in oil prices and more investment in renewable energy.
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