Week 3 – Chapter 8: Measuring Economic Performance

Business Cycles

The business cycle refers to the fluctuations in economic activity that an economy experiences over time, typically measured by changes in real GDP.

• Contraction/Expansion: Periods of declining (contraction) or increasing (expansion) economic activity.

• Economic growth: The sustained increase in real GDP over time.

GDP and Its Components

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

• Final goods vs. intermediate goods: Only final goods are counted in GDP to avoid double counting.

• Government purchases, consumption, investment, net exports: The main components of GDP, represented by the equation: where C = consumption, I = investment, G = government purchases, X = exports, M = imports.

Measuring GDP

• Nominal vs. real GDP: Nominal GDP is measured using current prices; real GDP is adjusted for inflation.

• GDP deflator/price index: Measures the change in prices of all new, domestically produced, final goods and services in an economy.

• Per capita GDP: GDP divided by the population, indicating average economic output per person.

Other Key Terms

• Inflation rate: The percentage increase in the general price level of goods and services over a period.

• Price level: The average of current prices across the entire spectrum of goods and services produced in the economy.

• Reserves, transfer payments, services: Additional components and flows in the economy, such as government transfers (e.g., social security).

Uses and Problems with GDP

• Uses: GDP is used to compare economic performance over time and between countries.

• Problems with measure: GDP does not account for non-market transactions, environmental degradation, or income distribution.

Problem Solving

• Calculating nominal and real GDP and GDP deflator

• Calculating growth rate:

Week 4 – Chapter 9: Unemployment and Inflation

Types of Unemployment

• Cyclical unemployment: Caused by economic downturns.

• Frictional unemployment: Short-term unemployment as people move between jobs.

• Structural unemployment: Mismatch between workers' skills and job requirements.

• Natural rate of unemployment: The sum of frictional and structural unemployment; the unemployment rate when the economy is at full employment.

• Full employment output: The level of output when the economy is at the natural rate of unemployment.

Labor Force and Measurement

• Labor force: The sum of employed and unemployed individuals actively seeking work.

• Labor force participation rate: The percentage of the working-age population in the labor force.

• Discouraged workers: Individuals not actively seeking work because they believe no jobs are available.

• Marginally attached workers, underemployment: Workers not fully captured by the unemployment rate.

Unemployment Rate

• Unemployment rate: The percentage of the labor force that is unemployed.

• Problems with unemployment measure: Does not account for discouraged or underemployed workers.

Inflation and Price Indices

• CPI (Consumer Price Index): Measures the average change over time in the prices paid by consumers for a market basket of goods and services.

• Chained CPI: Adjusts for changes in consumer behavior and substitution between goods.

Problem Solving

• Calculating labor force participation rate and unemployment rate

• Calculating CPI

• Real vs. nominal value calculations

• Calculating inflation rate:

Week 5 – Chapters 10 and 11: Economic Growth, Productivity, and Financial Markets

Economic Growth and Productivity

• Business cycle: Revisited as fluctuations in economic activity.

• Capital and human capital: Physical capital (machinery, buildings) and human capital (skills, education) are key drivers of productivity.

• Industrial revolution: Marked a significant increase in economic growth and productivity.

• Labor productivity: Output per worker or per hour worked.

• Economic growth model and policies: Theories and government actions to promote long-term growth.

• Per worker production function: Shows the relationship between capital per worker and output per worker.

Investment and Financial Markets

• Foreign direct investment: Investment by a firm or individual in one country into business interests located in another country.

• Loanable funds market: The market where savers supply funds for loans to borrowers.

• Consumption smoothing: The practice of optimizing spending and saving to maintain a stable standard of living over time.

• Expected return, interest rate: The anticipated profit from an investment and the cost of borrowing money.

• Investor confidence: The degree of optimism that investors feel about the overall state of the economy and their personal financial situation.

• Banks and financial intermediaries: Institutions that connect savers and borrowers, facilitating investment.

• Bonds and stock markets: Mechanisms for raising capital and investing in companies.

• Securitization: The process of pooling various types of debt and selling them as bonds to investors.

Problem Solving

• Loanable funds market analysis

• Security valuation

Summary Table: Key Macroeconomic Indicators

Additional info: Some explanations and formulas have been expanded for clarity and completeness based on standard macroeconomics curriculum.