Study Guide

Unit Overview

Long-Run Consequences of Stabilization Policies

AP MacroeconomicsΒ· 5 min read πŸ“Š 10-15% of total AP Macroeconomics exam score

1. Unit at a Glance

This unit builds on your understanding of short-run policy to examine how stabilization choices perform over longer time horizons. The core arc moves from foundational growth concepts, to long-run policy impacts, to analysis of government debt, the role of public policy in growth, and concludes with the Phillips Curve model of inflation-unemployment tradeoffs.

A unifying theme across all sub-topics is the tradeoff between short-run stimulus and long-run growth: policies that boost output today can crowd out private investment and slow future growth, while policies focused on long-run expansion often require short-run economic adjustments. You will learn how to apply core models to contemporary policy debates.

2. Common Pitfalls

Wrong move:

Confusing the properties of short-run and long-run Phillips Curves

Why:

Many learners mix up the tradeoff relationship across time horizons

Correct move:

Remember: downward-sloping short-run (tradeoff exists), vertical long-run (no tradeoff at natural unemployment)

Wrong move:

Generalizing that all government deficit spending reduces long-run growth

Why:

Learners often ignore what deficit spending funds when evaluating impacts

Correct move:

Deficit spending on public or human capital can increase long-run growth, offsetting crowding out effects

Wrong move:

Confusing annual deficits with total national debt

Why:

The two terms are often used interchangeably incorrectly on exams

Correct move:

Deficit = annual overspending; debt = cumulative total of past deficits minus surpluses

3. Quick Reference Cheatsheet

Concept / Formula

Unit-Level Key Summary

Rule of 70

Time to double real GDP =

Long-run Phillips Curve

Vertical at the natural rate of unemployment; no long-run tradeoff between inflation and unemployment

Crowding Out Effect

Increased government borrowing raises interest rates, reducing private investment and long-run growth

Deficit vs Debt

Deficit = annual government spending minus revenue; Debt = cumulative total of all past deficits

Core Growth Determinants

Long-run growth increases with physical capital, human capital, natural resources, and technological progress

What's Next

Begin your study of this unit with the foundational sub-topic on economic growth, which sets up all subsequent concepts about long-run policy impacts. Once you complete all sub-topics in this unit, you will move on to the final AP Macroeconomics unit covering open-economy macroeconomics and international trade.