Question

In the New Keynesian (sticky-price) Model, what is the primary reason the short-run Aggregate Supply (A

  • S curve is positively sloped, and what is its ultimate implication?
A Firms face imperfect information about the aggregate price level, leading to misperceptions.
B The real wage is kept above the market-clearing level due to efficiency wage theory.
C The nominal wage is fully flexible but the marginal propensity to consume (MPC) is less than one, dampening the multiplier effect.
D Some firms are unable to instantly adjust their prices in response to a change in demand, leading them to adjust output instead.
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