3.3

Short-Run Aggregate Supply

AP Macroeconomics

What Is SRAS?

Why SRAS Slopes Upward

The Key Assumption

50100150200250300350400406080100120140160Real GDPPrice LevelSRAS

SRAS slopes upward because sticky input prices mean higher output prices → higher profits → more production

Determinants of SRAS (SRAS Shifters)

Supply Shocks

50100150200250300350406080100120140160Real GDPPrice LevelE₁E₂ StagflationSRAS₁SRAS₂ (neg. shock)AD

Negative supply shock: SRAS shifts left → stagflation (higher PL, lower GDP)

Movement Along vs. Shift of SRAS

The Shape of SRAS in Detail

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