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AP Macroeconomics by David Mayer http://tw.neisd.net/webpages/dmayer/files/presentation%20resources.htm. The AS/AD Model. The AS/AD Model. The equilibrium of AS & AD determines current output (GDP R ) and the price level (PL). LRAS. SRAS. PL. P. AD. Y F. GDP R. Full Employment.
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AP Macroeconomicsby David Mayerhttp://tw.neisd.net/webpages/dmayer/files/presentation%20resources.htm The AS/AD Model
The AS/AD Model • The equilibrium of AS & AD determines current output (GDPR) and the price level (PL) LRAS SRAS PL P AD YF GDPR
Full Employment • Full Employment equilibrium exists where AD intersects SRAS & LRAS at the same point. LRAS SRAS PL P AD YF GDPR
Recessionary Gap • A recessionary gap exists when equilibrium occurs below full employment output. SRAS LRAS PL P AD Y YF GDPR
Inflationary Gap • An inflationary gap exists when equilibrium occurs beyond full employment output. LRAS SRAS PL P AD YF Y GDPR
Changes (Δ)in AD • Δ Consumption (C) • C↑ .: AD .: GDPR↑ & PL↑ .: u%↓ & π%↑ • C↓ .: AD .: GDPR↓ & PL↓ .: u%↑ & π%↓ • Δ Gross Private Investment (IG) • IG↑ .: AD .: GDPR↑ & PL↑ .: u%↓ & π%↑ • IG↓ .: AD .: GDPR↓ & PL↓ .: u%↑ & π%↓ • Δ Government Spending (G) • G↑ .: AD .: GDPR↑ & PL↑ .: u%↓ & π%↑ • G↓ .: AD .: GDPR↓ & PL↓ .: u%↑ & π%↓ • Δ Net Exports (XN) • XN↑ .: AD .: GDPR↑ & PL↑ .: u%↓ & π%↑ • XN↓ .: AD .: GDPR↓ & PL↓ .: u%↑ & π%↓
Increase in AD SRAS LRAS PL P1 P AD1 AD Y YF GDPR C↑, IG↑, G↑ and/or XN↑ .: AD .: GDPR↑ & PL↑ .: u%↓ & π%↑
Decrease in AD LRAS PL SRAS P P1 AD AD1 YF Y GDPR C↓, IG↓, G↓ and/or XN↓ .: AD .: GDPR↓ & PL↓ .: u%↑ & π%↓
Changes (Δ)in SRAS • Δ Input Prices • Input Prices↓ .: SRAS .: GDPR↑ & PL↓ .: u%↓ & π%↓ • Input Prices↑ .: SRAS .: GDPR↓ & PL ↑ .: u%↑ & π%↑ • Δ Productivity • Productivity↑ .: SRAS .: GDPR↑ & PL↓ .: u%↓ & π%↓ • Productivity↓ .: SRAS .: GDPR↓ & PL ↑ .: u%↑ & π%↑ • Δ Legal-Institutional Environment • Deregulation .: SRAS .: GDPR↑ & PL↓ .: u%↓ & π%↓ • Regulation .: SRAS .: GDPR↓ & PL ↑ .: u%↑ & π%↑
Increase in SRAS SRAS LRAS PL SRAS1 P P1 AD Y YF GDPR Input Prices↓, Productivity↑, and/or Deregulation .: SRAS .: GDPR↑ & PL↓ .: u%↓ & π%↓
Decrease in SRAS SRAS1 LRAS PL SRAS P1 P AD Y1 YF GDPR Input Prices↑, Productivity↓, and/or Regulation .: SRAS .: GDPR↓ & PL↑ .: u%↑ & π%↑
AS / AD Summary • ΔC, ΔIG, ΔG, and/or ΔXN = Δ AD • AD .: GDPR↑ & PL↑ .: u%↓ & π%↑ • AD .: GDPR↓ & PL↓ .: u%↑ & π%↓ • Δ Input Prices, Δ Productivity, and/or Δ Regulation = Δ SRAS • SRAS .: GDPR↑ & PL↓ .: u%↓ & π%↓ • SRAS .: GDPR↓ & PL ↑ .: u%↑ & π%↑ • The AS/AD Model is the most important graph in AP Macroeconomics. • KNOW IT!!!