5.7

Public Policy and Economic Growth

AP Macroeconomics

How government promotes growth

Supply-side fiscal policies

1. Infrastructure spending

2. Education and training spending

3. Tax incentives for investment

4. Research and development subsidies

Supply-side effects on AD-AS

40608010012014016050100150200Real GDPPrice LevelABLRAS₁LRAS₂SRAS₁SRAS₂AD

Supply-side growth: LRAS and SRAS shift right → higher output, lower price level

The trade-off: present vs. future consumption

1020304050607010203040506070Consumer GoodsCapital GoodsPoint X (more K)Point Y (more C)Current PPCFuture PPC (more K today)Future PPC (less K today)

Producing more capital goods today → faster PPC growth

Institutional factors that support growth

Policies that hinder growth

Growth policy debate

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