GDP

INTRODUCTION TO MACROECONOMICS

• Transition from Micro to Macro: Macroeconomics is a new field; before the 1930s, the economy was viewed in parts rather than as a whole.

• Impact of the Great Depression: The Great Depression exposed systemic issues, emphasizing the need for economic measurement.

SUBSISTENCE ECONOMIES VS. MODERN ECONOMIES

• Subsistence Economy: Illustrated by Cast Away, where survival depends on self-production of resources.

• Modern Economies: Households trade with firms rather than fully self-producing.

CIRCULAR FLOW MODEL

• Overview: Illustrates the exchange of goods, services, and money between households and firms.

• Flow Components: Households buy from firms; firms buy resources from households. Money circulates as households spend.

INCOME AND REVENUE FLOW

• Flow of Spending and Revenue: Household spending provides revenue for firms, which is then redistributed as wages and profits.

GROSS DOMESTIC PRODUCT (GDP)

• Importance: GDP is essential for assessing societal well-being and economic health.

• Definition: Total market value of new final goods/services produced in a country over a specified period.

COMPONENTS OF GDP

• GDP Breakdown: Segmented into consumption by households, investment by firms, international sector, and government spending.

WEAKNESSES OF GDP

• Omissions in GDP: Does not account for leisure or household production, and can include negative impacts like military spending.

GDP PER CAPITA

• Assessment of Wealth: Adjusts GDP to offer a per-person perspective; average wealth might mask inequality.

THE UNDERGROUND ECONOMY

• Economic Dynamics: Not all transactions are recorded; significant percentages exist in various countries, impacting GDP measures.