Macroeconomics Cheat Sheet

The core ideas of Macroeconomics distilled into a single, scannable reference — perfect for review or quick lookup.

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Quick Reference

Gross Domestic Product (GDP)

The total monetary value of all finished goods and services produced within a country's borders in a specific time period. It is the broadest quantitative measure of a nation's total economic activity and serves as the primary scorecard for an economy's health.

Inflation

A sustained increase in the general price level of goods and services in an economy over a period of time. When the price level rises, each unit of currency buys fewer goods and services, eroding purchasing power.

Unemployment Rate

The percentage of the labor force that is jobless and actively seeking employment. It is a key indicator of labor market health and has several types: frictional (job transitions), structural (skills mismatch), and cyclical (demand shortfalls).

Monetary Policy

Actions taken by a central bank to manage the money supply and interest rates to achieve macroeconomic objectives like controlling inflation, managing unemployment, and stabilizing the currency.

Fiscal Policy

The use of government spending and taxation to influence the economy. Expansionary fiscal policy increases spending or cuts taxes to stimulate growth, while contractionary fiscal policy does the opposite to cool an overheating economy.

Aggregate Demand and Aggregate Supply

Aggregate demand is the total demand for all goods and services in an economy at a given price level. Aggregate supply is the total output firms are willing to produce at each price level. Their intersection determines the equilibrium price level and real GDP.

Business Cycle

The natural fluctuation of the economy between periods of expansion (growth) and contraction (recession). The four phases are expansion, peak, contraction (recession), and trough, after which a new cycle begins.

Phillips Curve

An economic model showing an inverse relationship between inflation and unemployment in the short run. It suggests that lower unemployment comes at the cost of higher inflation, and vice versa, though this trade-off may break down in the long run.

Quantitative Easing (QE)

An unconventional monetary policy tool where the central bank purchases large quantities of government bonds or other financial assets to inject money into the economy, lower long-term interest rates, and stimulate lending and investment when conventional tools have been exhausted.

Balance of Payments

A comprehensive record of all economic transactions between residents of a country and the rest of the world during a specific period. It includes the current account (trade in goods and services), the capital account, and the financial account (investment flows).

Key Terms at a Glance

Aggregate Demand:The total demand for all goods and services in an economy at a given overall price level and in a given time period.

Aggregate Supply:The total supply of goods and services produced within an economy at a given overall price level in a given time period.

Balance of Payments:A statement of all transactions made between entities in one country and the rest of the world over a defined period.

Business Cycle:The fluctuation of economic activity between expansion and contraction phases over time.

Central Bank:A national institution that manages a country's currency, money supply, and interest rates, such as the Federal Reserve or the European Central Bank.

Consumer Price Index (CPI):A measure tracking changes in the price level of a weighted basket of consumer goods and services purchased by households.

Crowding Out:A reduction in private sector spending that occurs as a result of increased government spending and the higher interest rates it causes.

Cyclical Unemployment:Unemployment that rises during economic downturns and falls during periods of economic growth.

Deflation:A general decline in prices, often associated with reduced consumer spending and economic contraction.

Exchange Rate:The value of one nation's currency expressed in terms of another nation's currency.

Fiscal Policy:Government policy regarding taxation and public spending, used to influence macroeconomic conditions.

Frictional Unemployment:Short-term unemployment arising from the process of matching workers with jobs.

GDP Deflator:A measure of the price of all goods and services included in GDP, used to convert nominal GDP to real GDP.

Gross Domestic Product (GDP):The total market value of all finished goods and services produced within a country's borders in a given period.

Hyperinflation:Extremely rapid or out-of-control inflation, typically exceeding 50% per month, which can destroy a currency's purchasing power.

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